Home / 12,011,772,600.45-18,017,658,900.68-8,083,360,728.45

Finding the Fourth Proportional to 12,011,772,600.45, 18,017,658,900.68 and 8,083,360,728.45

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Solution

The fourth proportional to 12,011,772,600.45, 18,017,658,900.68 and 8,083,360,728.45 is: 12,125,041,092.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011,772,600.45 : 18,017,658,900.68 = 8,083,360,728.45 : x
  2. Step 2: Convert to fraction form
    12,011,772,600.45/18,017,658,900.68 = 8,083,360,728.45/x
  3. Step 3: Cross multiply
    12,011,772,600.45x = 18,017,658,900.68 × 8,083,360,728.45
  4. Step 4: Simplify right side
    12,011,772,600.45x = 145,643,236,376,323,883,008
  5. Step 5: Solve for x
    x = 145,643,236,376,323,883,008/12,011,772,600.45
  6. Step 6: Final answer
    x = 12,125,041,092.68

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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.