Home / 521,640,100.80-782,460,151.20-249,542,308.80

Finding the Fourth Proportional to 521,640,100.80, 782,460,151.20 and 249,542,308.80

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Solution

The fourth proportional to 521,640,100.80, 782,460,151.20 and 249,542,308.80 is: 374,313,463.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,640,100.80 : 782,460,151.20 = 249,542,308.80 : x
  2. Step 2: Convert to fraction form
    521,640,100.80/782,460,151.20 = 249,542,308.80/x
  3. Step 3: Cross multiply
    521,640,100.80x = 782,460,151.20 × 249,542,308.80
  4. Step 4: Simplify right side
    521,640,100.80x = 195,256,912,674,445,120
  5. Step 5: Solve for x
    x = 195,256,912,674,445,120/521,640,100.80
  6. Step 6: Final answer
    x = 374,313,463.20

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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.