Home / 71,445,054.85-107,032,359.79-42,211,470.13

Finding the Fourth Proportional to 71,445,054.85, 107,032,359.79 and 42,211,470.13

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Solution

The fourth proportional to 71,445,054.85, 107,032,359.79 and 42,211,470.13 is: 63,237,312.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,445,054.85 : 107,032,359.79 = 42,211,470.13 : x
  2. Step 2: Convert to fraction form
    71,445,054.85/107,032,359.79 = 42,211,470.13/x
  3. Step 3: Cross multiply
    71,445,054.85x = 107,032,359.79 × 42,211,470.13
  4. Step 4: Simplify right side
    71,445,054.85x = 4,517,993,258,218,999
  5. Step 5: Solve for x
    x = 4,517,993,258,218,999/71,445,054.85
  6. Step 6: Final answer
    x = 63,237,312.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.