Home / 121,603,978.55-182,329,335.35-103,166,365.70

Finding the Fourth Proportional to 121,603,978.55, 182,329,335.35 and 103,166,365.70

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Solution

The fourth proportional to 121,603,978.55, 182,329,335.35 and 103,166,365.70 is: 154,684,535.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,603,978.55 : 182,329,335.35 = 103,166,365.70 : x
  2. Step 2: Convert to fraction form
    121,603,978.55/182,329,335.35 = 103,166,365.70/x
  3. Step 3: Cross multiply
    121,603,978.55x = 182,329,335.35 × 103,166,365.70
  4. Step 4: Simplify right side
    121,603,978.55x = 18,810,254,888,556,036
  5. Step 5: Solve for x
    x = 18,810,254,888,556,036/121,603,978.55
  6. Step 6: Final answer
    x = 154,684,535.10

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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.