Home / 278,461,454.57-417,692,259.21-103,561,636.49

Finding the Fourth Proportional to 278,461,454.57, 417,692,259.21 and 103,561,636.49

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Solution

The fourth proportional to 278,461,454.57, 417,692,259.21 and 103,561,636.49 is: 155,342,483.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,461,454.57 : 417,692,259.21 = 103,561,636.49 : x
  2. Step 2: Convert to fraction form
    278,461,454.57/417,692,259.21 = 103,561,636.49/x
  3. Step 3: Cross multiply
    278,461,454.57x = 417,692,259.21 × 103,561,636.49
  4. Step 4: Simplify right side
    278,461,454.57x = 43,256,893,912,992,872
  5. Step 5: Solve for x
    x = 43,256,893,912,992,872/278,461,454.57
  6. Step 6: Final answer
    x = 155,342,483.50

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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.