Home / 56,809,916.80-85,214,875.20-39,425,891.20

Finding the Fourth Proportional to 56,809,916.80, 85,214,875.20 and 39,425,891.20

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Solution

The fourth proportional to 56,809,916.80, 85,214,875.20 and 39,425,891.20 is: 59,138,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,809,916.80 : 85,214,875.20 = 39,425,891.20 : x
  2. Step 2: Convert to fraction form
    56,809,916.80/85,214,875.20 = 39,425,891.20/x
  3. Step 3: Cross multiply
    56,809,916.80x = 85,214,875.20 × 39,425,891.20
  4. Step 4: Simplify right side
    56,809,916.80x = 3,359,672,398,256,778.50
  5. Step 5: Solve for x
    x = 3,359,672,398,256,778.50/56,809,916.80
  6. Step 6: Final answer
    x = 59,138,836.80

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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.