Home / 8,191,505.80-12,287,258.70-4,160,427.40

Finding the Fourth Proportional to 8,191,505.80, 12,287,258.70 and 4,160,427.40

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Solution

The fourth proportional to 8,191,505.80, 12,287,258.70 and 4,160,427.40 is: 6,240,641.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191,505.80 : 12,287,258.70 = 4,160,427.40 : x
  2. Step 2: Convert to fraction form
    8,191,505.80/12,287,258.70 = 4,160,427.40/x
  3. Step 3: Cross multiply
    8,191,505.80x = 12,287,258.70 × 4,160,427.40
  4. Step 4: Simplify right side
    8,191,505.80x = 51,120,247,766,368.38
  5. Step 5: Solve for x
    x = 51,120,247,766,368.38/8,191,505.80
  6. Step 6: Final answer
    x = 6,240,641.10

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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.