Home / 149,781,838.80-224,420,815.80-128,114,792.40

Finding the Fourth Proportional to 149,781,838.80, 224,420,815.80 and 128,114,792.40

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Solution

The fourth proportional to 149,781,838.80, 224,420,815.80 and 128,114,792.40 is: 191,956,691.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,781,838.80 : 224,420,815.80 = 128,114,792.40 : x
  2. Step 2: Convert to fraction form
    149,781,838.80/224,420,815.80 = 128,114,792.40/x
  3. Step 3: Cross multiply
    149,781,838.80x = 224,420,815.80 × 128,114,792.40
  4. Step 4: Simplify right side
    149,781,838.80x = 28,751,626,226,455,644
  5. Step 5: Solve for x
    x = 28,751,626,226,455,644/149,781,838.80
  6. Step 6: Final answer
    x = 191,956,691.52

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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.