Home / 680,339,247.12-939,158,371.98-457,450,123.92

Finding the Fourth Proportional to 680,339,247.12, 939,158,371.98 and 457,450,123.92

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Solution

The fourth proportional to 680,339,247.12, 939,158,371.98 and 457,450,123.92 is: 631,476,304.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,339,247.12 : 939,158,371.98 = 457,450,123.92 : x
  2. Step 2: Convert to fraction form
    680,339,247.12/939,158,371.98 = 457,450,123.92/x
  3. Step 3: Cross multiply
    680,339,247.12x = 939,158,371.98 × 457,450,123.92
  4. Step 4: Simplify right side
    680,339,247.12x = 429,618,113,642,756,480
  5. Step 5: Solve for x
    x = 429,618,113,642,756,480/680,339,247.12
  6. Step 6: Final answer
    x = 631,476,304.60

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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.