Home / 39,247,048.60-54,159,971.22-21,605,807.77

Finding the Fourth Proportional to 39,247,048.60, 54,159,971.22 and 21,605,807.77

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Solution

The fourth proportional to 39,247,048.60, 54,159,971.22 and 21,605,807.77 is: 29,815,488.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,247,048.60 : 54,159,971.22 = 21,605,807.77 : x
  2. Step 2: Convert to fraction form
    39,247,048.60/54,159,971.22 = 21,605,807.77/x
  3. Step 3: Cross multiply
    39,247,048.60x = 54,159,971.22 × 21,605,807.77
  4. Step 4: Simplify right side
    39,247,048.60x = 1,170,169,926,872,652.25
  5. Step 5: Solve for x
    x = 1,170,169,926,872,652.25/39,247,048.60
  6. Step 6: Final answer
    x = 29,815,488.52

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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.