Home / 66,728,981.40-99,967,500.90-34,270,402.20

Finding the Fourth Proportional to 66,728,981.40, 99,967,500.90 and 34,270,402.20

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Solution

The fourth proportional to 66,728,981.40, 99,967,500.90 and 34,270,402.20 is: 51,340,907.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,728,981.40 : 99,967,500.90 = 34,270,402.20 : x
  2. Step 2: Convert to fraction form
    66,728,981.40/99,967,500.90 = 34,270,402.20/x
  3. Step 3: Cross multiply
    66,728,981.40x = 99,967,500.90 × 34,270,402.20
  4. Step 4: Simplify right side
    66,728,981.40x = 3,425,926,462,771,862.50
  5. Step 5: Solve for x
    x = 3,425,926,462,771,862.50/66,728,981.40
  6. Step 6: Final answer
    x = 51,340,907.52

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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.