Home / 20,626,562.30-28,445,144.76-13,549,661.46

Finding the Fourth Proportional to 20,626,562.30, 28,445,144.76 and 13,549,661.46

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Solution

The fourth proportional to 20,626,562.30, 28,445,144.76 and 13,549,661.46 is: 18,685,715.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626,562.30 : 28,445,144.76 = 13,549,661.46 : x
  2. Step 2: Convert to fraction form
    20,626,562.30/28,445,144.76 = 13,549,661.46/x
  3. Step 3: Cross multiply
    20,626,562.30x = 28,445,144.76 × 13,549,661.46
  4. Step 4: Simplify right side
    20,626,562.30x = 385,422,081,678,693
  5. Step 5: Solve for x
    x = 385,422,081,678,693/20,626,562.30
  6. Step 6: Final answer
    x = 18,685,715.83

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1.5x scale

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.