Home / 199,324,871.40-298,987,307.10-91,619,495.40

Finding the Fourth Proportional to 199,324,871.40, 298,987,307.10 and 91,619,495.40

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Solution

The fourth proportional to 199,324,871.40, 298,987,307.10 and 91,619,495.40 is: 137,429,243.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,324,871.40 : 298,987,307.10 = 91,619,495.40 : x
  2. Step 2: Convert to fraction form
    199,324,871.40/298,987,307.10 = 91,619,495.40/x
  3. Step 3: Cross multiply
    199,324,871.40x = 298,987,307.10 × 91,619,495.40
  4. Step 4: Simplify right side
    199,324,871.40x = 27,393,066,207,506,840
  5. Step 5: Solve for x
    x = 27,393,066,207,506,840/199,324,871.40
  6. Step 6: Final answer
    x = 137,429,243.10

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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.