Home / 20,988,224.10-28,948,332.03-13,911,018.08

Finding the Fourth Proportional to 20,988,224.10, 28,948,332.03 and 13,911,018.08

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Solution

The fourth proportional to 20,988,224.10, 28,948,332.03 and 13,911,018.08 is: 19,186,986.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,988,224.10 : 28,948,332.03 = 13,911,018.08 : x
  2. Step 2: Convert to fraction form
    20,988,224.10/28,948,332.03 = 13,911,018.08/x
  3. Step 3: Cross multiply
    20,988,224.10x = 28,948,332.03 × 13,911,018.08
  4. Step 4: Simplify right side
    20,988,224.10x = 402,700,770,110,431.44
  5. Step 5: Solve for x
    x = 402,700,770,110,431.44/20,988,224.10
  6. Step 6: Final answer
    x = 19,186,986.39

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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.