Home / 28,115,141.80-42,172,712.70-26,520,818.80

Finding the Fourth Proportional to 28,115,141.80, 42,172,712.70 and 26,520,818.80

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Solution

The fourth proportional to 28,115,141.80, 42,172,712.70 and 26,520,818.80 is: 39,781,228.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115,141.80 : 42,172,712.70 = 26,520,818.80 : x
  2. Step 2: Convert to fraction form
    28,115,141.80/42,172,712.70 = 26,520,818.80/x
  3. Step 3: Cross multiply
    28,115,141.80x = 42,172,712.70 × 26,520,818.80
  4. Step 4: Simplify right side
    28,115,141.80x = 1,118,454,871,821,158.88
  5. Step 5: Solve for x
    x = 1,118,454,871,821,158.88/28,115,141.80
  6. Step 6: Final answer
    x = 39,781,228.20

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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.