Home / 399,480,401.38-599,220,602.07-112,266,065.38

Finding the Fourth Proportional to 399,480,401.38, 599,220,602.07 and 112,266,065.38

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Solution

The fourth proportional to 399,480,401.38, 599,220,602.07 and 112,266,065.38 is: 168,399,098.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,480,401.38 : 599,220,602.07 = 112,266,065.38 : x
  2. Step 2: Convert to fraction form
    399,480,401.38/599,220,602.07 = 112,266,065.38/x
  3. Step 3: Cross multiply
    399,480,401.38x = 599,220,602.07 × 112,266,065.38
  4. Step 4: Simplify right side
    399,480,401.38x = 67,272,139,289,033,584
  5. Step 5: Solve for x
    x = 67,272,139,289,033,584/399,480,401.38
  6. Step 6: Final answer
    x = 168,399,098.07

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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.