Home / 103,360,286.39-142,592,376.29-61,520,891.45

Finding the Fourth Proportional to 103,360,286.39, 142,592,376.29 and 61,520,891.45

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Solution

The fourth proportional to 103,360,286.39, 142,592,376.29 and 61,520,891.45 is: 84,872,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,360,286.39 : 142,592,376.29 = 61,520,891.45 : x
  2. Step 2: Convert to fraction form
    103,360,286.39/142,592,376.29 = 61,520,891.45/x
  3. Step 3: Cross multiply
    103,360,286.39x = 142,592,376.29 × 61,520,891.45
  4. Step 4: Simplify right side
    103,360,286.39x = 8,772,410,102,314,077
  5. Step 5: Solve for x
    x = 8,772,410,102,314,077/103,360,286.39
  6. Step 6: Final answer
    x = 84,872,153.60

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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.