Home / 472,886,937.38-709,398,103.28-145,389,951.77

Finding the Fourth Proportional to 472,886,937.38, 709,398,103.28 and 145,389,951.77

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Solution

The fourth proportional to 472,886,937.38, 709,398,103.28 and 145,389,951.77 is: 218,105,741.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,886,937.38 : 709,398,103.28 = 145,389,951.77 : x
  2. Step 2: Convert to fraction form
    472,886,937.38/709,398,103.28 = 145,389,951.77/x
  3. Step 3: Cross multiply
    472,886,937.38x = 709,398,103.28 × 145,389,951.77
  4. Step 4: Simplify right side
    472,886,937.38x = 103,139,356,017,334,720
  5. Step 5: Solve for x
    x = 103,139,356,017,334,720/472,886,937.38
  6. Step 6: Final answer
    x = 218,105,741.28

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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.