Home / 56,545,672.70-84,818,509.05-20,195,108.30

Finding the Fourth Proportional to 56,545,672.70, 84,818,509.05 and 20,195,108.30

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Solution

The fourth proportional to 56,545,672.70, 84,818,509.05 and 20,195,108.30 is: 30,292,662.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,545,672.70 : 84,818,509.05 = 20,195,108.30 : x
  2. Step 2: Convert to fraction form
    56,545,672.70/84,818,509.05 = 20,195,108.30/x
  3. Step 3: Cross multiply
    56,545,672.70x = 84,818,509.05 × 20,195,108.30
  4. Step 4: Simplify right side
    56,545,672.70x = 1,712,918,976,109,280
  5. Step 5: Solve for x
    x = 1,712,918,976,109,280/56,545,672.70
  6. Step 6: Final answer
    x = 30,292,662.45

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Double scale
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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.