Home / 38,656,979.76-53,343,885.24-21,252,874.80

Finding the Fourth Proportional to 38,656,979.76, 53,343,885.24 and 21,252,874.80

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Solution

The fourth proportional to 38,656,979.76, 53,343,885.24 and 21,252,874.80 is: 29,327,457.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,656,979.76 : 53,343,885.24 = 21,252,874.80 : x
  2. Step 2: Convert to fraction form
    38,656,979.76/53,343,885.24 = 21,252,874.80/x
  3. Step 3: Cross multiply
    38,656,979.76x = 53,343,885.24 × 21,252,874.80
  4. Step 4: Simplify right side
    38,656,979.76x = 1,133,710,914,351,288
  5. Step 5: Solve for x
    x = 1,133,710,914,351,288/38,656,979.76
  6. Step 6: Final answer
    x = 29,327,457.07

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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.