Home / 129,033,955.20-193,550,932.80-86,035,785.60

Finding the Fourth Proportional to 129,033,955.20, 193,550,932.80 and 86,035,785.60

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Solution

The fourth proportional to 129,033,955.20, 193,550,932.80 and 86,035,785.60 is: 129,053,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,033,955.20 : 193,550,932.80 = 86,035,785.60 : x
  2. Step 2: Convert to fraction form
    129,033,955.20/193,550,932.80 = 86,035,785.60/x
  3. Step 3: Cross multiply
    129,033,955.20x = 193,550,932.80 × 86,035,785.60
  4. Step 4: Simplify right side
    129,033,955.20x = 16,652,306,557,060,808
  5. Step 5: Solve for x
    x = 16,652,306,557,060,808/129,033,955.20
  6. Step 6: Final answer
    x = 129,053,678.40

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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.