Home / 21,828,761.60-32,680,156.80-19,309,337.60

Finding the Fourth Proportional to 21,828,761.60, 32,680,156.80 and 19,309,337.60

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Solution

The fourth proportional to 21,828,761.60, 32,680,156.80 and 19,309,337.60 is: 28,908,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,828,761.60 : 32,680,156.80 = 19,309,337.60 : x
  2. Step 2: Convert to fraction form
    21,828,761.60/32,680,156.80 = 19,309,337.60/x
  3. Step 3: Cross multiply
    21,828,761.60x = 32,680,156.80 × 19,309,337.60
  4. Step 4: Simplify right side
    21,828,761.60x = 631,032,180,472,135.75
  5. Step 5: Solve for x
    x = 631,032,180,472,135.75/21,828,761.60
  6. Step 6: Final answer
    x = 28,908,290.45

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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.