Home / 664,302,008.40-996,453,012.60-492,115,124.40

Finding the Fourth Proportional to 664,302,008.40, 996,453,012.60 and 492,115,124.40

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Solution

The fourth proportional to 664,302,008.40, 996,453,012.60 and 492,115,124.40 is: 738,172,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,302,008.40 : 996,453,012.60 = 492,115,124.40 : x
  2. Step 2: Convert to fraction form
    664,302,008.40/996,453,012.60 = 492,115,124.40/x
  3. Step 3: Cross multiply
    664,302,008.40x = 996,453,012.60 × 492,115,124.40
  4. Step 4: Simplify right side
    664,302,008.40x = 490,369,598,254,403,776
  5. Step 5: Solve for x
    x = 490,369,598,254,403,776/664,302,008.40
  6. Step 6: Final answer
    x = 738,172,686.60

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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.