Home / 38,589,909.30-53,254,167.81-21,187,376.28

Finding the Fourth Proportional to 38,589,909.30, 53,254,167.81 and 21,187,376.28

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Solution

The fourth proportional to 38,589,909.30, 53,254,167.81 and 21,187,376.28 is: 29,238,630.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,589,909.30 : 53,254,167.81 = 21,187,376.28 : x
  2. Step 2: Convert to fraction form
    38,589,909.30/53,254,167.81 = 21,187,376.28/x
  3. Step 3: Cross multiply
    38,589,909.30x = 53,254,167.81 × 21,187,376.28
  4. Step 4: Simplify right side
    38,589,909.30x = 1,128,316,091,868,733.75
  5. Step 5: Solve for x
    x = 1,128,316,091,868,733.75/38,589,909.30
  6. Step 6: Final answer
    x = 29,238,630.31

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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.