Home / 331,776,008.40-497,664,012.60-209,947,861.20

Finding the Fourth Proportional to 331,776,008.40, 497,664,012.60 and 209,947,861.20

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Solution

The fourth proportional to 331,776,008.40, 497,664,012.60 and 209,947,861.20 is: 314,921,791.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,776,008.40 : 497,664,012.60 = 209,947,861.20 : x
  2. Step 2: Convert to fraction form
    331,776,008.40/497,664,012.60 = 209,947,861.20/x
  3. Step 3: Cross multiply
    331,776,008.40x = 497,664,012.60 × 209,947,861.20
  4. Step 4: Simplify right side
    331,776,008.40x = 104,483,495,041,579,856
  5. Step 5: Solve for x
    x = 104,483,495,041,579,856/331,776,008.40
  6. Step 6: Final answer
    x = 314,921,791.80

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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.