Home / 39,228,708.86-54,136,116.20-21,589,642.32

Finding the Fourth Proportional to 39,228,708.86, 54,136,116.20 and 21,589,642.32

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Solution

The fourth proportional to 39,228,708.86, 54,136,116.20 and 21,589,642.32 is: 29,793,980.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,228,708.86 : 54,136,116.20 = 21,589,642.32 : x
  2. Step 2: Convert to fraction form
    39,228,708.86/54,136,116.20 = 21,589,642.32/x
  3. Step 3: Cross multiply
    39,228,708.86x = 54,136,116.20 × 21,589,642.32
  4. Step 4: Simplify right side
    39,228,708.86x = 1,168,779,385,351,957.75
  5. Step 5: Solve for x
    x = 1,168,779,385,351,957.75/39,228,708.86
  6. Step 6: Final answer
    x = 29,793,980.46

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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.