Home / 82,448,000.70-123,672,001.05-28,595,312.70

Finding the Fourth Proportional to 82,448,000.70, 123,672,001.05 and 28,595,312.70

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Solution

The fourth proportional to 82,448,000.70, 123,672,001.05 and 28,595,312.70 is: 42,892,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,448,000.70 : 123,672,001.05 = 28,595,312.70 : x
  2. Step 2: Convert to fraction form
    82,448,000.70/123,672,001.05 = 28,595,312.70/x
  3. Step 3: Cross multiply
    82,448,000.70x = 123,672,001.05 × 28,595,312.70
  4. Step 4: Simplify right side
    82,448,000.70x = 3,536,439,542,259,478
  5. Step 5: Solve for x
    x = 3,536,439,542,259,478/82,448,000.70
  6. Step 6: Final answer
    x = 42,892,969.05

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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.