Home / 131,138,799.44-180,967,941.23-72,400,397.18

Finding the Fourth Proportional to 131,138,799.44, 180,967,941.23 and 72,400,397.18

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Solution

The fourth proportional to 131,138,799.44, 180,967,941.23 and 72,400,397.18 is: 99,910,559.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,138,799.44 : 180,967,941.23 = 72,400,397.18 : x
  2. Step 2: Convert to fraction form
    131,138,799.44/180,967,941.23 = 72,400,397.18/x
  3. Step 3: Cross multiply
    131,138,799.44x = 180,967,941.23 × 72,400,397.18
  4. Step 4: Simplify right side
    131,138,799.44x = 13,102,150,822,057,072
  5. Step 5: Solve for x
    x = 13,102,150,822,057,072/131,138,799.44
  6. Step 6: Final answer
    x = 99,910,559.48

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1.5x scale

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.