Home / 78,003,965.40-117,005,948.10-58,730,371.80

Finding the Fourth Proportional to 78,003,965.40, 117,005,948.10 and 58,730,371.80

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Solution

The fourth proportional to 78,003,965.40, 117,005,948.10 and 58,730,371.80 is: 88,095,557.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,003,965.40 : 117,005,948.10 = 58,730,371.80 : x
  2. Step 2: Convert to fraction form
    78,003,965.40/117,005,948.10 = 58,730,371.80/x
  3. Step 3: Cross multiply
    78,003,965.40x = 117,005,948.10 × 58,730,371.80
  4. Step 4: Simplify right side
    78,003,965.40x = 6,871,802,834,724,503
  5. Step 5: Solve for x
    x = 6,871,802,834,724,503/78,003,965.40
  6. Step 6: Final answer
    x = 88,095,557.70

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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.