Home / 53,900,689.90-80,851,034.85-21,557,584.30

Finding the Fourth Proportional to 53,900,689.90, 80,851,034.85 and 21,557,584.30

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Solution

The fourth proportional to 53,900,689.90, 80,851,034.85 and 21,557,584.30 is: 32,336,376.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,900,689.90 : 80,851,034.85 = 21,557,584.30 : x
  2. Step 2: Convert to fraction form
    53,900,689.90/80,851,034.85 = 21,557,584.30/x
  3. Step 3: Cross multiply
    53,900,689.90x = 80,851,034.85 × 21,557,584.30
  4. Step 4: Simplify right side
    53,900,689.90x = 1,742,952,999,521,112.75
  5. Step 5: Solve for x
    x = 1,742,952,999,521,112.75/53,900,689.90
  6. Step 6: Final answer
    x = 32,336,376.45

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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.