Home / 30,665,217.28-42,317,258.16-16,913,886.16

Finding the Fourth Proportional to 30,665,217.28, 42,317,258.16 and 16,913,886.16

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Solution

The fourth proportional to 30,665,217.28, 42,317,258.16 and 16,913,886.16 is: 23,340,753.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,665,217.28 : 42,317,258.16 = 16,913,886.16 : x
  2. Step 2: Convert to fraction form
    30,665,217.28/42,317,258.16 = 16,913,886.16/x
  3. Step 3: Cross multiply
    30,665,217.28x = 42,317,258.16 × 16,913,886.16
  4. Step 4: Simplify right side
    30,665,217.28x = 715,749,287,121,571
  5. Step 5: Solve for x
    x = 715,749,287,121,571/30,665,217.28
  6. Step 6: Final answer
    x = 23,340,753.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.