Home / 151,609,454.97-209,221,047.70-81,994,835.77

Finding the Fourth Proportional to 151,609,454.97, 209,221,047.70 and 81,994,835.77

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Solution

The fourth proportional to 151,609,454.97, 209,221,047.70 and 81,994,835.77 is: 113,152,873.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,609,454.97 : 209,221,047.70 = 81,994,835.77 : x
  2. Step 2: Convert to fraction form
    151,609,454.97/209,221,047.70 = 81,994,835.77/x
  3. Step 3: Cross multiply
    151,609,454.97x = 209,221,047.70 × 81,994,835.77
  4. Step 4: Simplify right side
    151,609,454.97x = 17,155,045,445,060,796
  5. Step 5: Solve for x
    x = 17,155,045,445,060,796/151,609,454.97
  6. Step 6: Final answer
    x = 113,152,873.27

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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.