Home / 1,108,973,428.20-1,663,460,142.30-291,168,397.80

Finding the Fourth Proportional to 1,108,973,428.20, 1,663,460,142.30 and 291,168,397.80

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Solution

The fourth proportional to 1,108,973,428.20, 1,663,460,142.30 and 291,168,397.80 is: 436,752,596.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,973,428.20 : 1,663,460,142.30 = 291,168,397.80 : x
  2. Step 2: Convert to fraction form
    1,108,973,428.20/1,663,460,142.30 = 291,168,397.80/x
  3. Step 3: Cross multiply
    1,108,973,428.20x = 1,663,460,142.30 × 291,168,397.80
  4. Step 4: Simplify right side
    1,108,973,428.20x = 484,347,024,437,651,008
  5. Step 5: Solve for x
    x = 484,347,024,437,651,008/1,108,973,428.20
  6. Step 6: Final answer
    x = 436,752,596.70

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Double scale
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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.