Home / 915,014,020.20-1,262,732,131.62-497,326,180.20

Finding the Fourth Proportional to 915,014,020.20, 1,262,732,131.62 and 497,326,180.20

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Solution

The fourth proportional to 915,014,020.20, 1,262,732,131.62 and 497,326,180.20 is: 686,317,076.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,014,020.20 : 1,262,732,131.62 = 497,326,180.20 : x
  2. Step 2: Convert to fraction form
    915,014,020.20/1,262,732,131.62 = 497,326,180.20/x
  3. Step 3: Cross multiply
    915,014,020.20x = 1,262,732,131.62 × 497,326,180.20
  4. Step 4: Simplify right side
    915,014,020.20x = 627,989,747,634,378,112
  5. Step 5: Solve for x
    x = 627,989,747,634,378,112/915,014,020.20
  6. Step 6: Final answer
    x = 686,317,076.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.