Home / 393,288,281.00-542,656,809.58-225,992,220.72

Finding the Fourth Proportional to 393,288,281.00, 542,656,809.58 and 225,992,220.72

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Solution

The fourth proportional to 393,288,281.00, 542,656,809.58 and 225,992,220.72 is: 311,822,709.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,288,281.00 : 542,656,809.58 = 225,992,220.72 : x
  2. Step 2: Convert to fraction form
    393,288,281.00/542,656,809.58 = 225,992,220.72/x
  3. Step 3: Cross multiply
    393,288,281.00x = 542,656,809.58 × 225,992,220.72
  4. Step 4: Simplify right side
    393,288,281.00x = 122,636,217,488,002,688
  5. Step 5: Solve for x
    x = 122,636,217,488,002,688/393,288,281.00
  6. Step 6: Final answer
    x = 311,822,709.74

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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.