Home / 198,289,266.40-297,433,899.60-61,974,431.20

Finding the Fourth Proportional to 198,289,266.40, 297,433,899.60 and 61,974,431.20

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Solution

The fourth proportional to 198,289,266.40, 297,433,899.60 and 61,974,431.20 is: 92,961,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,289,266.40 : 297,433,899.60 = 61,974,431.20 : x
  2. Step 2: Convert to fraction form
    198,289,266.40/297,433,899.60 = 61,974,431.20/x
  3. Step 3: Cross multiply
    198,289,266.40x = 297,433,899.60 × 61,974,431.20
  4. Step 4: Simplify right side
    198,289,266.40x = 18,433,296,747,307,908
  5. Step 5: Solve for x
    x = 18,433,296,747,307,908/198,289,266.40
  6. Step 6: Final answer
    x = 92,961,646.80

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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.