Home / 121,278,006.40-181,917,009.60-48,458,779.60

Finding the Fourth Proportional to 121,278,006.40, 181,917,009.60 and 48,458,779.60

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Solution

The fourth proportional to 121,278,006.40, 181,917,009.60 and 48,458,779.60 is: 72,688,169.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,278,006.40 : 181,917,009.60 = 48,458,779.60 : x
  2. Step 2: Convert to fraction form
    121,278,006.40/181,917,009.60 = 48,458,779.60/x
  3. Step 3: Cross multiply
    121,278,006.40x = 181,917,009.60 × 48,458,779.60
  4. Step 4: Simplify right side
    121,278,006.40x = 8,815,476,273,697,484
  5. Step 5: Solve for x
    x = 8,815,476,273,697,484/121,278,006.40
  6. Step 6: Final answer
    x = 72,688,169.40

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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.