Home / 53,281,145.80-79,921,721.73-12,891,629.80

Finding the Fourth Proportional to 53,281,145.80, 79,921,721.73 and 12,891,629.80

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Solution

The fourth proportional to 53,281,145.80, 79,921,721.73 and 12,891,629.80 is: 19,337,445.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,281,145.80 : 79,921,721.73 = 12,891,629.80 : x
  2. Step 2: Convert to fraction form
    53,281,145.80/79,921,721.73 = 12,891,629.80/x
  3. Step 3: Cross multiply
    53,281,145.80x = 79,921,721.73 × 12,891,629.80
  4. Step 4: Simplify right side
    53,281,145.80x = 1,030,321,249,521,775.62
  5. Step 5: Solve for x
    x = 1,030,321,249,521,775.62/53,281,145.80
  6. Step 6: Final answer
    x = 19,337,445.43

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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.