Home / 514,992,763.80-772,489,145.70-458,557,666.20

Finding the Fourth Proportional to 514,992,763.80, 772,489,145.70 and 458,557,666.20

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Solution

The fourth proportional to 514,992,763.80, 772,489,145.70 and 458,557,666.20 is: 687,836,499.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,992,763.80 : 772,489,145.70 = 458,557,666.20 : x
  2. Step 2: Convert to fraction form
    514,992,763.80/772,489,145.70 = 458,557,666.20/x
  3. Step 3: Cross multiply
    514,992,763.80x = 772,489,145.70 × 458,557,666.20
  4. Step 4: Simplify right side
    514,992,763.80x = 354,230,819,817,023,808
  5. Step 5: Solve for x
    x = 354,230,819,817,023,808/514,992,763.80
  6. Step 6: Final answer
    x = 687,836,499.30

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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.