Home / 981,875,929.20-1,472,778,021.04-291,765,247.12

Finding the Fourth Proportional to 981,875,929.20, 1,472,778,021.04 and 291,765,247.12

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Solution

The fourth proportional to 981,875,929.20, 1,472,778,021.04 and 291,765,247.12 is: 437,637,211.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,875,929.20 : 1,472,778,021.04 = 291,765,247.12 : x
  2. Step 2: Convert to fraction form
    981,875,929.20/1,472,778,021.04 = 291,765,247.12/x
  3. Step 3: Cross multiply
    981,875,929.20x = 1,472,778,021.04 × 291,765,247.12
  4. Step 4: Simplify right side
    981,875,929.20x = 429,705,443,261,640,128
  5. Step 5: Solve for x
    x = 429,705,443,261,640,128/981,875,929.20
  6. Step 6: Final answer
    x = 437,637,211.06

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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.