Home / 143,139,414.30-214,709,121.45-66,436,950.30

Finding the Fourth Proportional to 143,139,414.30, 214,709,121.45 and 66,436,950.30

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Solution

The fourth proportional to 143,139,414.30, 214,709,121.45 and 66,436,950.30 is: 99,655,425.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,139,414.30 : 214,709,121.45 = 66,436,950.30 : x
  2. Step 2: Convert to fraction form
    143,139,414.30/214,709,121.45 = 66,436,950.30/x
  3. Step 3: Cross multiply
    143,139,414.30x = 214,709,121.45 × 66,436,950.30
  4. Step 4: Simplify right side
    143,139,414.30x = 14,264,619,230,730,312
  5. Step 5: Solve for x
    x = 14,264,619,230,730,312/143,139,414.30
  6. Step 6: Final answer
    x = 99,655,425.45

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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.