Home / 521,551,025.20-782,447,545.28-171,784,541.39

Finding the Fourth Proportional to 521,551,025.20, 782,447,545.28 and 171,784,541.39

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Solution

The fourth proportional to 521,551,025.20, 782,447,545.28 and 171,784,541.39 is: 257,716,668.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,551,025.20 : 782,447,545.28 = 171,784,541.39 : x
  2. Step 2: Convert to fraction form
    521,551,025.20/782,447,545.28 = 171,784,541.39/x
  3. Step 3: Cross multiply
    521,551,025.20x = 782,447,545.28 × 171,784,541.39
  4. Step 4: Simplify right side
    521,551,025.20x = 134,412,392,724,173,280
  5. Step 5: Solve for x
    x = 134,412,392,724,173,280/521,551,025.20
  6. Step 6: Final answer
    x = 257,716,668.61

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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.