Home / 72,292,709.85-99,761,141.49-39,252,202.76

Finding the Fourth Proportional to 72,292,709.85, 99,761,141.49 and 39,252,202.76

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Solution

The fourth proportional to 72,292,709.85, 99,761,141.49 and 39,252,202.76 is: 54,166,520.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,292,709.85 : 99,761,141.49 = 39,252,202.76 : x
  2. Step 2: Convert to fraction form
    72,292,709.85/99,761,141.49 = 39,252,202.76/x
  3. Step 3: Cross multiply
    72,292,709.85x = 99,761,141.49 × 39,252,202.76
  4. Step 4: Simplify right side
    72,292,709.85x = 3,915,844,553,334,528
  5. Step 5: Solve for x
    x = 3,915,844,553,334,528/72,292,709.85
  6. Step 6: Final answer
    x = 54,166,520.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.