Home / 402,084,553.25-554,900,385.30-302,790,116.81

Finding the Fourth Proportional to 402,084,553.25, 554,900,385.30 and 302,790,116.81

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Solution

The fourth proportional to 402,084,553.25, 554,900,385.30 and 302,790,116.81 is: 417,868,209.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,084,553.25 : 554,900,385.30 = 302,790,116.81 : x
  2. Step 2: Convert to fraction form
    402,084,553.25/554,900,385.30 = 302,790,116.81/x
  3. Step 3: Cross multiply
    402,084,553.25x = 554,900,385.30 × 302,790,116.81
  4. Step 4: Simplify right side
    402,084,553.25x = 168,018,352,482,900,992
  5. Step 5: Solve for x
    x = 168,018,352,482,900,992/402,084,553.25
  6. Step 6: Final answer
    x = 417,868,209.87

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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.