Home / 143,761,780.80-215,495,704.80-70,866,446.40

Finding the Fourth Proportional to 143,761,780.80, 215,495,704.80 and 70,866,446.40

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Solution

The fourth proportional to 143,761,780.80, 215,495,704.80 and 70,866,446.40 is: 106,227,223.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,761,780.80 : 215,495,704.80 = 70,866,446.40 : x
  2. Step 2: Convert to fraction form
    143,761,780.80/215,495,704.80 = 70,866,446.40/x
  3. Step 3: Cross multiply
    143,761,780.80x = 215,495,704.80 × 70,866,446.40
  4. Step 4: Simplify right side
    143,761,780.80x = 15,271,414,813,639,424
  5. Step 5: Solve for x
    x = 15,271,414,813,639,424/143,761,780.80
  6. Step 6: Final answer
    x = 106,227,223.46

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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.