Home / 331,775,999.90-497,663,999.85-209,947,852.70

Finding the Fourth Proportional to 331,775,999.90, 497,663,999.85 and 209,947,852.70

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Solution

The fourth proportional to 331,775,999.90, 497,663,999.85 and 209,947,852.70 is: 314,921,779.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,775,999.90 : 497,663,999.85 = 209,947,852.70 : x
  2. Step 2: Convert to fraction form
    331,775,999.90/497,663,999.85 = 209,947,852.70/x
  3. Step 3: Cross multiply
    331,775,999.90x = 497,663,999.85 × 209,947,852.70
  4. Step 4: Simplify right side
    331,775,999.90x = 104,483,488,134,600,624
  5. Step 5: Solve for x
    x = 104,483,488,134,600,624/331,775,999.90
  6. Step 6: Final answer
    x = 314,921,779.05

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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.