Home / 8,989,979.40-13,484,969.10-8,840,680.20

Finding the Fourth Proportional to 8,989,979.40, 13,484,969.10 and 8,840,680.20

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Solution

The fourth proportional to 8,989,979.40, 13,484,969.10 and 8,840,680.20 is: 13,261,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989,979.40 : 13,484,969.10 = 8,840,680.20 : x
  2. Step 2: Convert to fraction form
    8,989,979.40/13,484,969.10 = 8,840,680.20/x
  3. Step 3: Cross multiply
    8,989,979.40x = 13,484,969.10 × 8,840,680.20
  4. Step 4: Simplify right side
    8,989,979.40x = 119,216,299,319,981.81
  5. Step 5: Solve for x
    x = 119,216,299,319,981.81/8,989,979.40
  6. Step 6: Final answer
    x = 13,261,020.30

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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.