Home / 431,386,406.40-647,015,826.24-158,693,400.48

Finding the Fourth Proportional to 431,386,406.40, 647,015,826.24 and 158,693,400.48

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Solution

The fourth proportional to 431,386,406.40, 647,015,826.24 and 158,693,400.48 is: 238,016,636.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,386,406.40 : 647,015,826.24 = 158,693,400.48 : x
  2. Step 2: Convert to fraction form
    431,386,406.40/647,015,826.24 = 158,693,400.48/x
  3. Step 3: Cross multiply
    431,386,406.40x = 647,015,826.24 × 158,693,400.48
  4. Step 4: Simplify right side
    431,386,406.40x = 102,677,141,630,402,400
  5. Step 5: Solve for x
    x = 102,677,141,630,402,400/431,386,406.40
  6. Step 6: Final answer
    x = 238,016,636.84

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.