Home / 386,209,530.30-579,314,295.45-143,822,279.10

Finding the Fourth Proportional to 386,209,530.30, 579,314,295.45 and 143,822,279.10

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Solution

The fourth proportional to 386,209,530.30, 579,314,295.45 and 143,822,279.10 is: 215,733,418.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,209,530.30 : 579,314,295.45 = 143,822,279.10 : x
  2. Step 2: Convert to fraction form
    386,209,530.30/579,314,295.45 = 143,822,279.10/x
  3. Step 3: Cross multiply
    386,209,530.30x = 579,314,295.45 × 143,822,279.10
  4. Step 4: Simplify right side
    386,209,530.30x = 83,318,302,286,829,760
  5. Step 5: Solve for x
    x = 83,318,302,286,829,760/386,209,530.30
  6. Step 6: Final answer
    x = 215,733,418.65

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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.