Home / 28,167,947,341.20-42,251,921,011.80-15,107,253,325.20

Finding the Fourth Proportional to 28,167,947,341.20, 42,251,921,011.80 and 15,107,253,325.20

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Solution

The fourth proportional to 28,167,947,341.20, 42,251,921,011.80 and 15,107,253,325.20 is: 22,660,879,987.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,167,947,341.20 : 42,251,921,011.80 = 15,107,253,325.20 : x
  2. Step 2: Convert to fraction form
    28,167,947,341.20/42,251,921,011.80 = 15,107,253,325.20/x
  3. Step 3: Cross multiply
    28,167,947,341.20x = 42,251,921,011.80 × 15,107,253,325.20
  4. Step 4: Simplify right side
    28,167,947,341.20x = 638,310,474,201,603,375,104
  5. Step 5: Solve for x
    x = 638,310,474,201,603,375,104/28,167,947,341.20
  6. Step 6: Final answer
    x = 22,660,879,987.80

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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.