Home / 12,011,772,581.70-18,017,658,872.55-8,083,360,709.70

Finding the Fourth Proportional to 12,011,772,581.70, 18,017,658,872.55 and 8,083,360,709.70

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Solution

The fourth proportional to 12,011,772,581.70, 18,017,658,872.55 and 8,083,360,709.70 is: 12,125,041,064.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011,772,581.70 : 18,017,658,872.55 = 8,083,360,709.70 : x
  2. Step 2: Convert to fraction form
    12,011,772,581.70/18,017,658,872.55 = 8,083,360,709.70/x
  3. Step 3: Cross multiply
    12,011,772,581.70x = 18,017,658,872.55 × 8,083,360,709.70
  4. Step 4: Simplify right side
    12,011,772,581.70x = 145,643,235,811,148,267,520
  5. Step 5: Solve for x
    x = 145,643,235,811,148,267,520/12,011,772,581.70
  6. Step 6: Final answer
    x = 12,125,041,064.55

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Double scale
Find fourth proportional to 12,011,772,582.70, 18,017,658,874.05 and 8,083,360,710.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.