Home / 331,776,016.40-497,664,024.60-209,947,869.20

Finding the Fourth Proportional to 331,776,016.40, 497,664,024.60 and 209,947,869.20

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Solution

The fourth proportional to 331,776,016.40, 497,664,024.60 and 209,947,869.20 is: 314,921,803.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,776,016.40 : 497,664,024.60 = 209,947,869.20 : x
  2. Step 2: Convert to fraction form
    331,776,016.40/497,664,024.60 = 209,947,869.20/x
  3. Step 3: Cross multiply
    331,776,016.40x = 497,664,024.60 × 209,947,869.20
  4. Step 4: Simplify right side
    331,776,016.40x = 104,483,501,542,266,384
  5. Step 5: Solve for x
    x = 104,483,501,542,266,384/331,776,016.40
  6. Step 6: Final answer
    x = 314,921,803.80

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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.