Home / 72,430,443.40-108,645,665.10-55,424,331.40

Finding the Fourth Proportional to 72,430,443.40, 108,645,665.10 and 55,424,331.40

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Solution

The fourth proportional to 72,430,443.40, 108,645,665.10 and 55,424,331.40 is: 83,136,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,430,443.40 : 108,645,665.10 = 55,424,331.40 : x
  2. Step 2: Convert to fraction form
    72,430,443.40/108,645,665.10 = 55,424,331.40/x
  3. Step 3: Cross multiply
    72,430,443.40x = 108,645,665.10 × 55,424,331.40
  4. Step 4: Simplify right side
    72,430,443.40x = 6,021,613,347,675,814
  5. Step 5: Solve for x
    x = 6,021,613,347,675,814/72,430,443.40
  6. Step 6: Final answer
    x = 83,136,497.10

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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.