Home / 139,543,256.80-209,324,216.40-47,425,650.40

Finding the Fourth Proportional to 139,543,256.80, 209,324,216.40 and 47,425,650.40

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Solution

The fourth proportional to 139,543,256.80, 209,324,216.40 and 47,425,650.40 is: 71,141,646.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,543,256.80 : 209,324,216.40 = 47,425,650.40 : x
  2. Step 2: Convert to fraction form
    139,543,256.80/209,324,216.40 = 47,425,650.40/x
  3. Step 3: Cross multiply
    139,543,256.80x = 209,324,216.40 × 47,425,650.40
  4. Step 4: Simplify right side
    139,543,256.80x = 9,927,337,107,240,346
  5. Step 5: Solve for x
    x = 9,927,337,107,240,346/139,543,256.80
  6. Step 6: Final answer
    x = 71,141,646.93

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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.