Home / 209,939,250.80-314,908,876.20-133,317,268.40

Finding the Fourth Proportional to 209,939,250.80, 314,908,876.20 and 133,317,268.40

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Solution

The fourth proportional to 209,939,250.80, 314,908,876.20 and 133,317,268.40 is: 199,975,902.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,939,250.80 : 314,908,876.20 = 133,317,268.40 : x
  2. Step 2: Convert to fraction form
    209,939,250.80/314,908,876.20 = 133,317,268.40/x
  3. Step 3: Cross multiply
    209,939,250.80x = 314,908,876.20 × 133,317,268.40
  4. Step 4: Simplify right side
    209,939,250.80x = 41,982,791,169,897,776
  5. Step 5: Solve for x
    x = 41,982,791,169,897,776/209,939,250.80
  6. Step 6: Final answer
    x = 199,975,902.60

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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.