Home / 194,146,010.80-291,219,016.20-139,939,028.80

Finding the Fourth Proportional to 194,146,010.80, 291,219,016.20 and 139,939,028.80

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Solution

The fourth proportional to 194,146,010.80, 291,219,016.20 and 139,939,028.80 is: 209,908,543.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,146,010.80 : 291,219,016.20 = 139,939,028.80 : x
  2. Step 2: Convert to fraction form
    194,146,010.80/291,219,016.20 = 139,939,028.80/x
  3. Step 3: Cross multiply
    194,146,010.80x = 291,219,016.20 × 139,939,028.80
  4. Step 4: Simplify right side
    194,146,010.80x = 40,752,906,295,119,472
  5. Step 5: Solve for x
    x = 40,752,906,295,119,472/194,146,010.80
  6. Step 6: Final answer
    x = 209,908,543.20

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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.