Home / 78,597,419.72-108,465,181.11-43,316,515.29

Finding the Fourth Proportional to 78,597,419.72, 108,465,181.11 and 43,316,515.29

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Solution

The fourth proportional to 78,597,419.72, 108,465,181.11 and 43,316,515.29 is: 59,777,199.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,597,419.72 : 108,465,181.11 = 43,316,515.29 : x
  2. Step 2: Convert to fraction form
    78,597,419.72/108,465,181.11 = 43,316,515.29/x
  3. Step 3: Cross multiply
    78,597,419.72x = 108,465,181.11 × 43,316,515.29
  4. Step 4: Simplify right side
    78,597,419.72x = 4,698,333,676,390,679
  5. Step 5: Solve for x
    x = 4,698,333,676,390,679/78,597,419.72
  6. Step 6: Final answer
    x = 59,777,199.98

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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.