Home / 128,750,402.79-177,680,228.18-73,756,888.11

Finding the Fourth Proportional to 128,750,402.79, 177,680,228.18 and 73,756,888.11

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Solution

The fourth proportional to 128,750,402.79, 177,680,228.18 and 73,756,888.11 is: 101,787,182.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,750,402.79 : 177,680,228.18 = 73,756,888.11 : x
  2. Step 2: Convert to fraction form
    128,750,402.79/177,680,228.18 = 73,756,888.11/x
  3. Step 3: Cross multiply
    128,750,402.79x = 177,680,228.18 × 73,756,888.11
  4. Step 4: Simplify right side
    128,750,402.79x = 13,105,140,708,862,746
  5. Step 5: Solve for x
    x = 13,105,140,708,862,746/128,750,402.79
  6. Step 6: Final answer
    x = 101,787,182.21

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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.