Home / 153,914,016.40-212,404,780.80-87,833,199.04

Finding the Fourth Proportional to 153,914,016.40, 212,404,780.80 and 87,833,199.04

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Solution

The fourth proportional to 153,914,016.40, 212,404,780.80 and 87,833,199.04 is: 121,211,776.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,914,016.40 : 212,404,780.80 = 87,833,199.04 : x
  2. Step 2: Convert to fraction form
    153,914,016.40/212,404,780.80 = 87,833,199.04/x
  3. Step 3: Cross multiply
    153,914,016.40x = 212,404,780.80 × 87,833,199.04
  4. Step 4: Simplify right side
    153,914,016.40x = 18,656,191,389,053,972
  5. Step 5: Solve for x
    x = 18,656,191,389,053,972/153,914,016.40
  6. Step 6: Final answer
    x = 121,211,776.71

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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.