Home / 78,046,364.40-107,695,267.80-43,230,416.88

Finding the Fourth Proportional to 78,046,364.40, 107,695,267.80 and 43,230,416.88

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Solution

The fourth proportional to 78,046,364.40, 107,695,267.80 and 43,230,416.88 is: 59,653,147.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,046,364.40 : 107,695,267.80 = 43,230,416.88 : x
  2. Step 2: Convert to fraction form
    78,046,364.40/107,695,267.80 = 43,230,416.88/x
  3. Step 3: Cross multiply
    78,046,364.40x = 107,695,267.80 × 43,230,416.88
  4. Step 4: Simplify right side
    78,046,364.40x = 4,655,711,322,997,241
  5. Step 5: Solve for x
    x = 4,655,711,322,997,241/78,046,364.40
  6. Step 6: Final answer
    x = 59,653,147.96

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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.