Home / 278,461,444.47-417,692,244.11-103,561,626.46

Finding the Fourth Proportional to 278,461,444.47, 417,692,244.11 and 103,561,626.46

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Solution

The fourth proportional to 278,461,444.47, 417,692,244.11 and 103,561,626.46 is: 155,342,468.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,461,444.47 : 417,692,244.11 = 103,561,626.46 : x
  2. Step 2: Convert to fraction form
    278,461,444.47/417,692,244.11 = 103,561,626.46/x
  3. Step 3: Cross multiply
    278,461,444.47x = 417,692,244.11 × 103,561,626.46
  4. Step 4: Simplify right side
    278,461,444.47x = 43,256,888,158,196,920
  5. Step 5: Solve for x
    x = 43,256,888,158,196,920/278,461,444.47
  6. Step 6: Final answer
    x = 155,342,468.47

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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.