Home / 85,536,134.40-128,304,201.60-21,710,726.40

Finding the Fourth Proportional to 85,536,134.40, 128,304,201.60 and 21,710,726.40

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Solution

The fourth proportional to 85,536,134.40, 128,304,201.60 and 21,710,726.40 is: 32,566,089.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536,134.40 : 128,304,201.60 = 21,710,726.40 : x
  2. Step 2: Convert to fraction form
    85,536,134.40/128,304,201.60 = 21,710,726.40/x
  3. Step 3: Cross multiply
    85,536,134.40x = 128,304,201.60 × 21,710,726.40
  4. Step 4: Simplify right side
    85,536,134.40x = 2,785,577,416,908,042
  5. Step 5: Solve for x
    x = 2,785,577,416,908,042/85,536,134.40
  6. Step 6: Final answer
    x = 32,566,089.60

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Similar ratio
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1.5x scale

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.