Home / 142,030,942.95-212,858,072.73-72,940,955.76

Finding the Fourth Proportional to 142,030,942.95, 212,858,072.73 and 72,940,955.76

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Solution

The fourth proportional to 142,030,942.95, 212,858,072.73 and 72,940,955.76 is: 109,314,709.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,030,942.95 : 212,858,072.73 = 72,940,955.76 : x
  2. Step 2: Convert to fraction form
    142,030,942.95/212,858,072.73 = 72,940,955.76/x
  3. Step 3: Cross multiply
    142,030,942.95x = 212,858,072.73 × 72,940,955.76
  4. Step 4: Simplify right side
    142,030,942.95x = 15,526,071,266,157,792
  5. Step 5: Solve for x
    x = 15,526,071,266,157,792/142,030,942.95
  6. Step 6: Final answer
    x = 109,314,709.48

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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.