Home / 42,683,569.60-64,067,344.80-21,142,494.40

Finding the Fourth Proportional to 42,683,569.60, 64,067,344.80 and 21,142,494.40

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Solution

The fourth proportional to 42,683,569.60, 64,067,344.80 and 21,142,494.40 is: 31,734,540.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,683,569.60 : 64,067,344.80 = 21,142,494.40 : x
  2. Step 2: Convert to fraction form
    42,683,569.60/64,067,344.80 = 21,142,494.40/x
  3. Step 3: Cross multiply
    42,683,569.60x = 64,067,344.80 × 21,142,494.40
  4. Step 4: Simplify right side
    42,683,569.60x = 1,354,543,478,656,869
  5. Step 5: Solve for x
    x = 1,354,543,478,656,869/42,683,569.60
  6. Step 6: Final answer
    x = 31,734,540.75

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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.