Home / 142,684,403.22-196,905,484.20-77,494,307.22

Finding the Fourth Proportional to 142,684,403.22, 196,905,484.20 and 77,494,307.22

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Solution

The fourth proportional to 142,684,403.22, 196,905,484.20 and 77,494,307.22 is: 106,942,691.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,684,403.22 : 196,905,484.20 = 77,494,307.22 : x
  2. Step 2: Convert to fraction form
    142,684,403.22/196,905,484.20 = 77,494,307.22/x
  3. Step 3: Cross multiply
    142,684,403.22x = 196,905,484.20 × 77,494,307.22
  4. Step 4: Simplify right side
    142,684,403.22x = 15,259,054,085,897,654
  5. Step 5: Solve for x
    x = 15,259,054,085,897,654/142,684,403.22
  6. Step 6: Final answer
    x = 106,942,691.29

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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.