Home / 82,701,044.70-124,051,567.05-81,425,586.30

Finding the Fourth Proportional to 82,701,044.70, 124,051,567.05 and 81,425,586.30

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Solution

The fourth proportional to 82,701,044.70, 124,051,567.05 and 81,425,586.30 is: 122,138,379.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,701,044.70 : 124,051,567.05 = 81,425,586.30 : x
  2. Step 2: Convert to fraction form
    82,701,044.70/124,051,567.05 = 81,425,586.30/x
  3. Step 3: Cross multiply
    82,701,044.70x = 124,051,567.05 × 81,425,586.30
  4. Step 4: Simplify right side
    82,701,044.70x = 10,100,971,578,480,010
  5. Step 5: Solve for x
    x = 10,100,971,578,480,010/82,701,044.70
  6. Step 6: Final answer
    x = 122,138,379.45

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Double scale
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Similar ratio
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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.