Home / 28,453,423.19-42,680,165.56-13,317,983.51

Finding the Fourth Proportional to 28,453,423.19, 42,680,165.56 and 13,317,983.51

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Solution

The fourth proportional to 28,453,423.19, 42,680,165.56 and 13,317,983.51 is: 19,976,989.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,453,423.19 : 42,680,165.56 = 13,317,983.51 : x
  2. Step 2: Convert to fraction form
    28,453,423.19/42,680,165.56 = 13,317,983.51/x
  3. Step 3: Cross multiply
    28,453,423.19x = 42,680,165.56 × 13,317,983.51
  4. Step 4: Simplify right side
    28,453,423.19x = 568,413,740,885,454.12
  5. Step 5: Solve for x
    x = 568,413,740,885,454.12/28,453,423.19
  6. Step 6: Final answer
    x = 19,976,989.66

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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.