Home / 56,105,998.20-84,138,002.10-19,700,321.40

Finding the Fourth Proportional to 56,105,998.20, 84,138,002.10 and 19,700,321.40

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Solution

The fourth proportional to 56,105,998.20, 84,138,002.10 and 19,700,321.40 is: 29,543,110.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,105,998.20 : 84,138,002.10 = 19,700,321.40 : x
  2. Step 2: Convert to fraction form
    56,105,998.20/84,138,002.10 = 19,700,321.40/x
  3. Step 3: Cross multiply
    56,105,998.20x = 84,138,002.10 × 19,700,321.40
  4. Step 4: Simplify right side
    56,105,998.20x = 1,657,545,683,323,874.75
  5. Step 5: Solve for x
    x = 1,657,545,683,323,874.75/56,105,998.20
  6. Step 6: Final answer
    x = 29,543,110.12

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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.