Home / 459,178,167,693.60-688,767,251,540.40-123,826,992,415.20

Finding the Fourth Proportional to 459,178,167,693.60, 688,767,251,540.40 and 123,826,992,415.20

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Solution

The fourth proportional to 459,178,167,693.60, 688,767,251,540.40 and 123,826,992,415.20 is: 185,740,488,622.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,178,167,693.60 : 688,767,251,540.40 = 123,826,992,415.20 : x
  2. Step 2: Convert to fraction form
    459,178,167,693.60/688,767,251,540.40 = 123,826,992,415.20/x
  3. Step 3: Cross multiply
    459,178,167,693.60x = 688,767,251,540.40 × 123,826,992,415.20
  4. Step 4: Simplify right side
    459,178,167,693.60x = 85,287,977,232,331,259,772,928
  5. Step 5: Solve for x
    x = 85,287,977,232,331,259,772,928/459,178,167,693.60
  6. Step 6: Final answer
    x = 185,740,488,622.80

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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.