Home / 142,072,802.60-196,060,460.10-76,882,706.60

Finding the Fourth Proportional to 142,072,802.60, 196,060,460.10 and 76,882,706.60

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Solution

The fourth proportional to 142,072,802.60, 196,060,460.10 and 76,882,706.60 is: 106,098,131.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,072,802.60 : 196,060,460.10 = 76,882,706.60 : x
  2. Step 2: Convert to fraction form
    142,072,802.60/196,060,460.10 = 76,882,706.60/x
  3. Step 3: Cross multiply
    142,072,802.60x = 196,060,460.10 × 76,882,706.60
  4. Step 4: Simplify right side
    142,072,802.60x = 15,073,658,829,729,306
  5. Step 5: Solve for x
    x = 15,073,658,829,729,306/142,072,802.60
  6. Step 6: Final answer
    x = 106,098,131.06

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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.