Home / 485,911,450.80-729,037,237.32-140,885,781.84

Finding the Fourth Proportional to 485,911,450.80, 729,037,237.32 and 140,885,781.84

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Solution

The fourth proportional to 485,911,450.80, 729,037,237.32 and 140,885,781.84 is: 211,377,980.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,911,450.80 : 729,037,237.32 = 140,885,781.84 : x
  2. Step 2: Convert to fraction form
    485,911,450.80/729,037,237.32 = 140,885,781.84/x
  3. Step 3: Cross multiply
    485,911,450.80x = 729,037,237.32 × 140,885,781.84
  4. Step 4: Simplify right side
    485,911,450.80x = 102,710,981,170,301,840
  5. Step 5: Solve for x
    x = 102,710,981,170,301,840/485,911,450.80
  6. Step 6: Final answer
    x = 211,377,980.50

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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.