Home / 521,551,856.40-782,327,784.60-521,551,856.40

Finding the Fourth Proportional to 521,551,856.40, 782,327,784.60 and 521,551,856.40

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Solution

The fourth proportional to 521,551,856.40, 782,327,784.60 and 521,551,856.40 is: 782,327,784.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,551,856.40 : 782,327,784.60 = 521,551,856.40 : x
  2. Step 2: Convert to fraction form
    521,551,856.40/782,327,784.60 = 521,551,856.40/x
  3. Step 3: Cross multiply
    521,551,856.40x = 782,327,784.60 × 521,551,856.40
  4. Step 4: Simplify right side
    521,551,856.40x = 408,024,508,371,429,312
  5. Step 5: Solve for x
    x = 408,024,508,371,429,312/521,551,856.40
  6. Step 6: Final answer
    x = 782,327,784.60

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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.