Home / 127,418,980.08-175,851,684.48-77,888,346.72

Finding the Fourth Proportional to 127,418,980.08, 175,851,684.48 and 77,888,346.72

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Solution

The fourth proportional to 127,418,980.08, 175,851,684.48 and 77,888,346.72 is: 107,494,165.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,418,980.08 : 175,851,684.48 = 77,888,346.72 : x
  2. Step 2: Convert to fraction form
    127,418,980.08/175,851,684.48 = 77,888,346.72/x
  3. Step 3: Cross multiply
    127,418,980.08x = 175,851,684.48 × 77,888,346.72
  4. Step 4: Simplify right side
    127,418,980.08x = 13,696,796,972,074,282
  5. Step 5: Solve for x
    x = 13,696,796,972,074,282/127,418,980.08
  6. Step 6: Final answer
    x = 107,494,165.81

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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.