Home / 158,113,723.74-218,165,931-99,342,337.11

Finding the Fourth Proportional to 158,113,723.74, 218,165,931 and 99,342,337.11

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Solution

The fourth proportional to 158,113,723.74, 218,165,931 and 99,342,337.11 is: 137,072,943.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,113,723.74 : 218,165,931 = 99,342,337.11 : x
  2. Step 2: Convert to fraction form
    158,113,723.74/218,165,931 = 99,342,337.11/x
  3. Step 3: Cross multiply
    158,113,723.74x = 218,165,931 × 99,342,337.11
  4. Step 4: Simplify right side
    158,113,723.74x = 21,673,113,463,319,000
  5. Step 5: Solve for x
    x = 21,673,113,463,319,000/158,113,723.74
  6. Step 6: Final answer
    x = 137,072,943.14

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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.