Home / 514,945,688.40-772,418,532.60-458,510,590.80

Finding the Fourth Proportional to 514,945,688.40, 772,418,532.60 and 458,510,590.80

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Solution

The fourth proportional to 514,945,688.40, 772,418,532.60 and 458,510,590.80 is: 687,765,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,945,688.40 : 772,418,532.60 = 458,510,590.80 : x
  2. Step 2: Convert to fraction form
    514,945,688.40/772,418,532.60 = 458,510,590.80/x
  3. Step 3: Cross multiply
    514,945,688.40x = 772,418,532.60 × 458,510,590.80
  4. Step 4: Simplify right side
    514,945,688.40x = 354,162,077,727,295,104
  5. Step 5: Solve for x
    x = 354,162,077,727,295,104/514,945,688.40
  6. Step 6: Final answer
    x = 687,765,886.20

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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.