Home / 128,750,465.79-177,680,315.07-73,756,951.11

Finding the Fourth Proportional to 128,750,465.79, 177,680,315.07 and 73,756,951.11

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Solution

The fourth proportional to 128,750,465.79, 177,680,315.07 and 73,756,951.11 is: 101,787,269.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,750,465.79 : 177,680,315.07 = 73,756,951.11 : x
  2. Step 2: Convert to fraction form
    128,750,465.79/177,680,315.07 = 73,756,951.11/x
  3. Step 3: Cross multiply
    128,750,465.79x = 177,680,315.07 × 73,756,951.11
  4. Step 4: Simplify right side
    128,750,465.79x = 13,105,158,311,827,386
  5. Step 5: Solve for x
    x = 13,105,158,311,827,386/128,750,465.79
  6. Step 6: Final answer
    x = 101,787,269.13

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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.