Home / 45,143,449.98-62,320,881.51-28,640,445.18

Finding the Fourth Proportional to 45,143,449.98, 62,320,881.51 and 28,640,445.18

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Solution

The fourth proportional to 45,143,449.98, 62,320,881.51 and 28,640,445.18 is: 39,538,355.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,143,449.98 : 62,320,881.51 = 28,640,445.18 : x
  2. Step 2: Convert to fraction form
    45,143,449.98/62,320,881.51 = 28,640,445.18/x
  3. Step 3: Cross multiply
    45,143,449.98x = 62,320,881.51 × 28,640,445.18
  4. Step 4: Simplify right side
    45,143,449.98x = 1,784,897,790,456,430.50
  5. Step 5: Solve for x
    x = 1,784,897,790,456,430.50/45,143,449.98
  6. Step 6: Final answer
    x = 39,538,355.87

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1.5x scale

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.