Home / 28,521,971.10-42,782,956.65-13,169,231.10

Finding the Fourth Proportional to 28,521,971.10, 42,782,956.65 and 13,169,231.10

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Solution

The fourth proportional to 28,521,971.10, 42,782,956.65 and 13,169,231.10 is: 19,753,846.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,521,971.10 : 42,782,956.65 = 13,169,231.10 : x
  2. Step 2: Convert to fraction form
    28,521,971.10/42,782,956.65 = 13,169,231.10/x
  3. Step 3: Cross multiply
    28,521,971.10x = 42,782,956.65 × 13,169,231.10
  4. Step 4: Simplify right side
    28,521,971.10x = 563,418,643,265,131.75
  5. Step 5: Solve for x
    x = 563,418,643,265,131.75/28,521,971.10
  6. Step 6: Final answer
    x = 19,753,846.65

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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.