Home / 128,013,742.50-176,657,470.20-69,275,048.64

Finding the Fourth Proportional to 128,013,742.50, 176,657,470.20 and 69,275,048.64

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Solution

The fourth proportional to 128,013,742.50, 176,657,470.20 and 69,275,048.64 is: 95,598,758.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,013,742.50 : 176,657,470.20 = 69,275,048.64 : x
  2. Step 2: Convert to fraction form
    128,013,742.50/176,657,470.20 = 69,275,048.64/x
  3. Step 3: Cross multiply
    128,013,742.50x = 176,657,470.20 × 69,275,048.64
  4. Step 4: Simplify right side
    128,013,742.50x = 12,237,954,840,724,350
  5. Step 5: Solve for x
    x = 12,237,954,840,724,350/128,013,742.50
  6. Step 6: Final answer
    x = 95,598,758.40

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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.