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Finding the Fourth Proportional to 8,889,818.70, 13,334,728.05 and 8,748,101.10

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Solution

The fourth proportional to 8,889,818.70, 13,334,728.05 and 8,748,101.10 is: 13,122,151.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889,818.70 : 13,334,728.05 = 8,748,101.10 : x
  2. Step 2: Convert to fraction form
    8,889,818.70/13,334,728.05 = 8,748,101.10/x
  3. Step 3: Cross multiply
    8,889,818.70x = 13,334,728.05 × 8,748,101.10
  4. Step 4: Simplify right side
    8,889,818.70x = 116,653,549,122,405.86
  5. Step 5: Solve for x
    x = 116,653,549,122,405.86/8,889,818.70
  6. Step 6: Final answer
    x = 13,122,151.65

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Double scale
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Similar ratio
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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.