Home / 28,168,593,781.20-42,252,890,671.80-15,107,899,765.20

Finding the Fourth Proportional to 28,168,593,781.20, 42,252,890,671.80 and 15,107,899,765.20

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Solution

The fourth proportional to 28,168,593,781.20, 42,252,890,671.80 and 15,107,899,765.20 is: 22,661,849,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,168,593,781.20 : 42,252,890,671.80 = 15,107,899,765.20 : x
  2. Step 2: Convert to fraction form
    28,168,593,781.20/42,252,890,671.80 = 15,107,899,765.20/x
  3. Step 3: Cross multiply
    28,168,593,781.20x = 42,252,890,671.80 × 15,107,899,765.20
  4. Step 4: Simplify right side
    28,168,593,781.20x = 638,352,437,059,508,633,600
  5. Step 5: Solve for x
    x = 638,352,437,059,508,633,600/28,168,593,781.20
  6. Step 6: Final answer
    x = 22,661,849,647.80

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1.5x scale

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.