Home / 129,367,403.40-178,526,092.32-70,630,066.56

Finding the Fourth Proportional to 129,367,403.40, 178,526,092.32 and 70,630,066.56

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Solution

The fourth proportional to 129,367,403.40, 178,526,092.32 and 70,630,066.56 is: 97,468,987.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,367,403.40 : 178,526,092.32 = 70,630,066.56 : x
  2. Step 2: Convert to fraction form
    129,367,403.40/178,526,092.32 = 70,630,066.56/x
  3. Step 3: Cross multiply
    129,367,403.40x = 178,526,092.32 × 70,630,066.56
  4. Step 4: Simplify right side
    129,367,403.40x = 12,609,309,783,258,304
  5. Step 5: Solve for x
    x = 12,609,309,783,258,304/129,367,403.40
  6. Step 6: Final answer
    x = 97,468,987.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.