Home / 131,109,061.20-196,506,127.80-54,392,600.40

Finding the Fourth Proportional to 131,109,061.20, 196,506,127.80 and 54,392,600.40

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Solution

The fourth proportional to 131,109,061.20, 196,506,127.80 and 54,392,600.40 is: 81,523,574.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,109,061.20 : 196,506,127.80 = 54,392,600.40 : x
  2. Step 2: Convert to fraction form
    131,109,061.20/196,506,127.80 = 54,392,600.40/x
  3. Step 3: Cross multiply
    131,109,061.20x = 196,506,127.80 × 54,392,600.40
  4. Step 4: Simplify right side
    131,109,061.20x = 10,688,479,285,576,732
  5. Step 5: Solve for x
    x = 10,688,479,285,576,732/131,109,061.20
  6. Step 6: Final answer
    x = 81,523,574.25

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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.