Home / 136,657,271.20-188,591,264.40-74,780,217.76

Finding the Fourth Proportional to 136,657,271.20, 188,591,264.40 and 74,780,217.76

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Solution

The fourth proportional to 136,657,271.20, 188,591,264.40 and 74,780,217.76 is: 103,199,015.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,657,271.20 : 188,591,264.40 = 74,780,217.76 : x
  2. Step 2: Convert to fraction form
    136,657,271.20/188,591,264.40 = 74,780,217.76/x
  3. Step 3: Cross multiply
    136,657,271.20x = 188,591,264.40 × 74,780,217.76
  4. Step 4: Simplify right side
    136,657,271.20x = 14,102,895,819,465,738
  5. Step 5: Solve for x
    x = 14,102,895,819,465,738/136,657,271.20
  6. Step 6: Final answer
    x = 103,199,015.29

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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.