Home / 486,747,775.58-730,851,065.22-421,370,567.76

Finding the Fourth Proportional to 486,747,775.58, 730,851,065.22 and 421,370,567.76

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Solution

The fourth proportional to 486,747,775.58, 730,851,065.22 and 421,370,567.76 is: 632,687,284.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,747,775.58 : 730,851,065.22 = 421,370,567.76 : x
  2. Step 2: Convert to fraction form
    486,747,775.58/730,851,065.22 = 421,370,567.76/x
  3. Step 3: Cross multiply
    486,747,775.58x = 730,851,065.22 × 421,370,567.76
  4. Step 4: Simplify right side
    486,747,775.58x = 307,959,128,299,752,192
  5. Step 5: Solve for x
    x = 307,959,128,299,752,192/486,747,775.58
  6. Step 6: Final answer
    x = 632,687,284.36

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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.