Home / 142,519,931.20-196,679,791.20-77,329,835.20

Finding the Fourth Proportional to 142,519,931.20, 196,679,791.20 and 77,329,835.20

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Solution

The fourth proportional to 142,519,931.20, 196,679,791.20 and 77,329,835.20 is: 106,716,413.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,519,931.20 : 196,679,791.20 = 77,329,835.20 : x
  2. Step 2: Convert to fraction form
    142,519,931.20/196,679,791.20 = 77,329,835.20/x
  3. Step 3: Cross multiply
    142,519,931.20x = 196,679,791.20 × 77,329,835.20
  4. Step 4: Simplify right side
    142,519,931.20x = 15,209,215,840,666,410
  5. Step 5: Solve for x
    x = 15,209,215,840,666,410/142,519,931.20
  6. Step 6: Final answer
    x = 106,716,413.01

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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.