Home / 74,732,532.80-112,098,799.20-20,879,758.40

Finding the Fourth Proportional to 74,732,532.80, 112,098,799.20 and 20,879,758.40

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Solution

The fourth proportional to 74,732,532.80, 112,098,799.20 and 20,879,758.40 is: 31,319,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,732,532.80 : 112,098,799.20 = 20,879,758.40 : x
  2. Step 2: Convert to fraction form
    74,732,532.80/112,098,799.20 = 20,879,758.40/x
  3. Step 3: Cross multiply
    74,732,532.80x = 112,098,799.20 × 20,879,758.40
  4. Step 4: Simplify right side
    74,732,532.80x = 2,340,595,844,226,113
  5. Step 5: Solve for x
    x = 2,340,595,844,226,113/74,732,532.80
  6. Step 6: Final answer
    x = 31,319,637.60

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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.