Home / 514,977,293.80-772,465,940.70-458,857,124.20

Finding the Fourth Proportional to 514,977,293.80, 772,465,940.70 and 458,857,124.20

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Solution

The fourth proportional to 514,977,293.80, 772,465,940.70 and 458,857,124.20 is: 688,285,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,977,293.80 : 772,465,940.70 = 458,857,124.20 : x
  2. Step 2: Convert to fraction form
    514,977,293.80/772,465,940.70 = 458,857,124.20/x
  3. Step 3: Cross multiply
    514,977,293.80x = 772,465,940.70 × 458,857,124.20
  4. Step 4: Simplify right side
    514,977,293.80x = 354,451,500,092,049,728
  5. Step 5: Solve for x
    x = 354,451,500,092,049,728/514,977,293.80
  6. Step 6: Final answer
    x = 688,285,686.30

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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.