Home / 39,905,035.61-55,068,924.78-21,570,321.11

Finding the Fourth Proportional to 39,905,035.61, 55,068,924.78 and 21,570,321.11

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Solution

The fourth proportional to 39,905,035.61, 55,068,924.78 and 21,570,321.11 is: 29,767,029.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,905,035.61 : 55,068,924.78 = 21,570,321.11 : x
  2. Step 2: Convert to fraction form
    39,905,035.61/55,068,924.78 = 21,570,321.11/x
  3. Step 3: Cross multiply
    39,905,035.61x = 55,068,924.78 × 21,570,321.11
  4. Step 4: Simplify right side
    39,905,035.61x = 1,187,854,390,411,691.50
  5. Step 5: Solve for x
    x = 1,187,854,390,411,691.50/39,905,035.61
  6. Step 6: Final answer
    x = 29,767,029.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.