Home / 78,003,939.90-117,005,909.85-58,730,346.30

Finding the Fourth Proportional to 78,003,939.90, 117,005,909.85 and 58,730,346.30

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Solution

The fourth proportional to 78,003,939.90, 117,005,909.85 and 58,730,346.30 is: 88,095,519.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,003,939.90 : 117,005,909.85 = 58,730,346.30 : x
  2. Step 2: Convert to fraction form
    78,003,939.90/117,005,909.85 = 58,730,346.30/x
  3. Step 3: Cross multiply
    78,003,939.90x = 117,005,909.85 × 58,730,346.30
  4. Step 4: Simplify right side
    78,003,939.90x = 6,871,797,604,637,080
  5. Step 5: Solve for x
    x = 6,871,797,604,637,080/78,003,939.90
  6. Step 6: Final answer
    x = 88,095,519.45

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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.