Home / 21,264,005.10-31,896,007.65-18,744,581.10

Finding the Fourth Proportional to 21,264,005.10, 31,896,007.65 and 18,744,581.10

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Solution

The fourth proportional to 21,264,005.10, 31,896,007.65 and 18,744,581.10 is: 28,116,871.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,264,005.10 : 31,896,007.65 = 18,744,581.10 : x
  2. Step 2: Convert to fraction form
    21,264,005.10/31,896,007.65 = 18,744,581.10/x
  3. Step 3: Cross multiply
    21,264,005.10x = 31,896,007.65 × 18,744,581.10
  4. Step 4: Simplify right side
    21,264,005.10x = 597,877,302,161,645.38
  5. Step 5: Solve for x
    x = 597,877,302,161,645.38/21,264,005.10
  6. Step 6: Final answer
    x = 28,116,871.65

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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.