Home / 9,966,107.20-14,949,160.80-8,989,830.40

Finding the Fourth Proportional to 9,966,107.20, 14,949,160.80 and 8,989,830.40

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Solution

The fourth proportional to 9,966,107.20, 14,949,160.80 and 8,989,830.40 is: 13,484,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966,107.20 : 14,949,160.80 = 8,989,830.40 : x
  2. Step 2: Convert to fraction form
    9,966,107.20/14,949,160.80 = 8,989,830.40/x
  3. Step 3: Cross multiply
    9,966,107.20x = 14,949,160.80 × 8,989,830.40
  4. Step 4: Simplify right side
    9,966,107.20x = 134,390,420,214,328.33
  5. Step 5: Solve for x
    x = 134,390,420,214,328.33/9,966,107.20
  6. Step 6: Final answer
    x = 13,484,745.60

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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.