Home / 158,019,663.24-218,065,528.17-87,455,410.74

Finding the Fourth Proportional to 158,019,663.24, 218,065,528.17 and 87,455,410.74

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Solution

The fourth proportional to 158,019,663.24, 218,065,528.17 and 87,455,410.74 is: 120,687,577.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,019,663.24 : 218,065,528.17 = 87,455,410.74 : x
  2. Step 2: Convert to fraction form
    158,019,663.24/218,065,528.17 = 87,455,410.74/x
  3. Step 3: Cross multiply
    158,019,663.24x = 218,065,528.17 × 87,455,410.74
  4. Step 4: Simplify right side
    158,019,663.24x = 19,071,010,334,342,388
  5. Step 5: Solve for x
    x = 19,071,010,334,342,388/158,019,663.24
  6. Step 6: Final answer
    x = 120,687,577.38

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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.