Home / 28,025,117.40-42,037,676.10-7,830,359.40

Finding the Fourth Proportional to 28,025,117.40, 42,037,676.10 and 7,830,359.40

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Solution

The fourth proportional to 28,025,117.40, 42,037,676.10 and 7,830,359.40 is: 11,745,539.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025,117.40 : 42,037,676.10 = 7,830,359.40 : x
  2. Step 2: Convert to fraction form
    28,025,117.40/42,037,676.10 = 7,830,359.40/x
  3. Step 3: Cross multiply
    28,025,117.40x = 42,037,676.10 × 7,830,359.40
  4. Step 4: Simplify right side
    28,025,117.40x = 329,170,112,203,790.38
  5. Step 5: Solve for x
    x = 329,170,112,203,790.38/28,025,117.40
  6. Step 6: Final answer
    x = 11,745,539.10

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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.