Home / 128,750,626.62-177,680,537-73,757,111.94

Finding the Fourth Proportional to 128,750,626.62, 177,680,537 and 73,757,111.94

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Solution

The fourth proportional to 128,750,626.62, 177,680,537 and 73,757,111.94 is: 101,787,491.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,750,626.62 : 177,680,537 = 73,757,111.94 : x
  2. Step 2: Convert to fraction form
    128,750,626.62/177,680,537 = 73,757,111.94/x
  3. Step 3: Cross multiply
    128,750,626.62x = 177,680,537 × 73,757,111.94
  4. Step 4: Simplify right side
    128,750,626.62x = 13,105,203,257,068,312
  5. Step 5: Solve for x
    x = 13,105,203,257,068,312/128,750,626.62
  6. Step 6: Final answer
    x = 101,787,491.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.