Home / 280,671,125.52-420,974,522.64-73,429,535.16

Finding the Fourth Proportional to 280,671,125.52, 420,974,522.64 and 73,429,535.16

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Solution

The fourth proportional to 280,671,125.52, 420,974,522.64 and 73,429,535.16 is: 110,135,887.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,671,125.52 : 420,974,522.64 = 73,429,535.16 : x
  2. Step 2: Convert to fraction form
    280,671,125.52/420,974,522.64 = 73,429,535.16/x
  3. Step 3: Cross multiply
    280,671,125.52x = 420,974,522.64 × 73,429,535.16
  4. Step 4: Simplify right side
    280,671,125.52x = 30,911,963,511,658,092
  5. Step 5: Solve for x
    x = 30,911,963,511,658,092/280,671,125.52
  6. Step 6: Final answer
    x = 110,135,887.52

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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.