Home / 25,890,636.80-38,860,838.40-13,125,555.20

Finding the Fourth Proportional to 25,890,636.80, 38,860,838.40 and 13,125,555.20

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Solution

The fourth proportional to 25,890,636.80, 38,860,838.40 and 13,125,555.20 is: 19,700,947.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,890,636.80 : 38,860,838.40 = 13,125,555.20 : x
  2. Step 2: Convert to fraction form
    25,890,636.80/38,860,838.40 = 13,125,555.20/x
  3. Step 3: Cross multiply
    25,890,636.80x = 38,860,838.40 × 13,125,555.20
  4. Step 4: Simplify right side
    25,890,636.80x = 510,070,079,537,479.62
  5. Step 5: Solve for x
    x = 510,070,079,537,479.62/25,890,636.80
  6. Step 6: Final answer
    x = 19,700,947.62

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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.