Home / 420,060,527.75-579,692,807.73-231,888,375.92

Finding the Fourth Proportional to 420,060,527.75, 579,692,807.73 and 231,888,375.92

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Solution

The fourth proportional to 420,060,527.75, 579,692,807.73 and 231,888,375.92 is: 320,011,081.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,060,527.75 : 579,692,807.73 = 231,888,375.92 : x
  2. Step 2: Convert to fraction form
    420,060,527.75/579,692,807.73 = 231,888,375.92/x
  3. Step 3: Cross multiply
    420,060,527.75x = 579,692,807.73 × 231,888,375.92
  4. Step 4: Simplify right side
    420,060,527.75x = 134,424,023,714,116,064
  5. Step 5: Solve for x
    x = 134,424,023,714,116,064/420,060,527.75
  6. Step 6: Final answer
    x = 320,011,081.35

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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.