Home / 749,288,630.30-1,121,780,609.40-458,723,263.55

Finding the Fourth Proportional to 749,288,630.30, 1,121,780,609.40 and 458,723,263.55

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Solution

The fourth proportional to 749,288,630.30, 1,121,780,609.40 and 458,723,263.55 is: 686,767,210.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,288,630.30 : 1,121,780,609.40 = 458,723,263.55 : x
  2. Step 2: Convert to fraction form
    749,288,630.30/1,121,780,609.40 = 458,723,263.55/x
  3. Step 3: Cross multiply
    749,288,630.30x = 1,121,780,609.40 × 458,723,263.55
  4. Step 4: Simplify right side
    749,288,630.30x = 514,586,862,131,075,840
  5. Step 5: Solve for x
    x = 514,586,862,131,075,840/749,288,630.30
  6. Step 6: Final answer
    x = 686,767,210.02

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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.