Home / 74,769,948.80-112,070,942.40-31,631,811.20

Finding the Fourth Proportional to 74,769,948.80, 112,070,942.40 and 31,631,811.20

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Solution

The fourth proportional to 74,769,948.80, 112,070,942.40 and 31,631,811.20 is: 47,412,188.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,769,948.80 : 112,070,942.40 = 31,631,811.20 : x
  2. Step 2: Convert to fraction form
    74,769,948.80/112,070,942.40 = 31,631,811.20/x
  3. Step 3: Cross multiply
    74,769,948.80x = 112,070,942.40 × 31,631,811.20
  4. Step 4: Simplify right side
    74,769,948.80x = 3,545,006,891,002,875
  5. Step 5: Solve for x
    x = 3,545,006,891,002,875/74,769,948.80
  6. Step 6: Final answer
    x = 47,412,188.29

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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.