Home / 38,838,697.20-58,258,045.80-19,728,399.60

Finding the Fourth Proportional to 38,838,697.20, 58,258,045.80 and 19,728,399.60

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Solution

The fourth proportional to 38,838,697.20, 58,258,045.80 and 19,728,399.60 is: 29,592,599.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,838,697.20 : 58,258,045.80 = 19,728,399.60 : x
  2. Step 2: Convert to fraction form
    38,838,697.20/58,258,045.80 = 19,728,399.60/x
  3. Step 3: Cross multiply
    38,838,697.20x = 58,258,045.80 × 19,728,399.60
  4. Step 4: Simplify right side
    38,838,697.20x = 1,149,338,007,457,501.75
  5. Step 5: Solve for x
    x = 1,149,338,007,457,501.75/38,838,697.20
  6. Step 6: Final answer
    x = 29,592,599.40

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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.