Home / 10,402,440.90-15,603,661.35-9,142,728.90

Finding the Fourth Proportional to 10,402,440.90, 15,603,661.35 and 9,142,728.90

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Solution

The fourth proportional to 10,402,440.90, 15,603,661.35 and 9,142,728.90 is: 13,714,093.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,402,440.90 : 15,603,661.35 = 9,142,728.90 : x
  2. Step 2: Convert to fraction form
    10,402,440.90/15,603,661.35 = 9,142,728.90/x
  3. Step 3: Cross multiply
    10,402,440.90x = 15,603,661.35 × 9,142,728.90
  4. Step 4: Simplify right side
    10,402,440.90x = 142,660,045,570,458.03
  5. Step 5: Solve for x
    x = 142,660,045,570,458.03/10,402,440.90
  6. Step 6: Final answer
    x = 13,714,093.35

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Double scale
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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.