Home / 10,402,426.90-15,603,640.35-9,142,714.90

Finding the Fourth Proportional to 10,402,426.90, 15,603,640.35 and 9,142,714.90

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Solution

The fourth proportional to 10,402,426.90, 15,603,640.35 and 9,142,714.90 is: 13,714,072.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,402,426.90 : 15,603,640.35 = 9,142,714.90 : x
  2. Step 2: Convert to fraction form
    10,402,426.90/15,603,640.35 = 9,142,714.90/x
  3. Step 3: Cross multiply
    10,402,426.90x = 15,603,640.35 × 9,142,714.90
  4. Step 4: Simplify right side
    10,402,426.90x = 142,659,635,122,186.22
  5. Step 5: Solve for x
    x = 142,659,635,122,186.22/10,402,426.90
  6. Step 6: Final answer
    x = 13,714,072.35

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Similar ratio
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1.5x scale

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.