Home / 38,561,813.04-53,215,403.06-20,920,714.69

Finding the Fourth Proportional to 38,561,813.04, 53,215,403.06 and 20,920,714.69

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Solution

The fourth proportional to 38,561,813.04, 53,215,403.06 and 20,920,714.69 is: 28,870,641.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,561,813.04 : 53,215,403.06 = 20,920,714.69 : x
  2. Step 2: Convert to fraction form
    38,561,813.04/53,215,403.06 = 20,920,714.69/x
  3. Step 3: Cross multiply
    38,561,813.04x = 53,215,403.06 × 20,920,714.69
  4. Step 4: Simplify right side
    38,561,813.04x = 1,113,304,264,450,876.25
  5. Step 5: Solve for x
    x = 1,113,304,264,450,876.25/38,561,813.04
  6. Step 6: Final answer
    x = 28,870,641.10

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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.