Home / 142,219,605.59-196,278,983.63-80,343,929.96

Finding the Fourth Proportional to 142,219,605.59, 196,278,983.63 and 80,343,929.96

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Solution

The fourth proportional to 142,219,605.59, 196,278,983.63 and 80,343,929.96 is: 110,883,621.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,219,605.59 : 196,278,983.63 = 80,343,929.96 : x
  2. Step 2: Convert to fraction form
    142,219,605.59/196,278,983.63 = 80,343,929.96/x
  3. Step 3: Cross multiply
    142,219,605.59x = 196,278,983.63 × 80,343,929.96
  4. Step 4: Simplify right side
    142,219,605.59x = 15,769,824,912,005,592
  5. Step 5: Solve for x
    x = 15,769,824,912,005,592/142,219,605.59
  6. Step 6: Final answer
    x = 110,883,621.47

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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.