Home / 420,060,522.49-579,692,800.49-231,888,370.66

Finding the Fourth Proportional to 420,060,522.49, 579,692,800.49 and 231,888,370.66

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Solution

The fourth proportional to 420,060,522.49, 579,692,800.49 and 231,888,370.66 is: 320,011,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,060,522.49 : 579,692,800.49 = 231,888,370.66 : x
  2. Step 2: Convert to fraction form
    420,060,522.49/579,692,800.49 = 231,888,370.66/x
  3. Step 3: Cross multiply
    420,060,522.49x = 579,692,800.49 × 231,888,370.66
  4. Step 4: Simplify right side
    420,060,522.49x = 134,424,018,986,349,872
  5. Step 5: Solve for x
    x = 134,424,018,986,349,872/420,060,522.49
  6. Step 6: Final answer
    x = 320,011,074.10

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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.