Home / 199,284,428.70-298,926,643.05-122,358,015.90

Finding the Fourth Proportional to 199,284,428.70, 298,926,643.05 and 122,358,015.90

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Solution

The fourth proportional to 199,284,428.70, 298,926,643.05 and 122,358,015.90 is: 183,537,023.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,284,428.70 : 298,926,643.05 = 122,358,015.90 : x
  2. Step 2: Convert to fraction form
    199,284,428.70/298,926,643.05 = 122,358,015.90/x
  3. Step 3: Cross multiply
    199,284,428.70x = 298,926,643.05 × 122,358,015.90
  4. Step 4: Simplify right side
    199,284,428.70x = 36,576,070,943,245,528
  5. Step 5: Solve for x
    x = 36,576,070,943,245,528/199,284,428.70
  6. Step 6: Final answer
    x = 183,537,023.85

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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.