Home / 142,974,930.05-214,364,487.80-72,809,338.50

Finding the Fourth Proportional to 142,974,930.05, 214,364,487.80 and 72,809,338.50

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Solution

The fourth proportional to 142,974,930.05, 214,364,487.80 and 72,809,338.50 is: 109,164,148.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,974,930.05 : 214,364,487.80 = 72,809,338.50 : x
  2. Step 2: Convert to fraction form
    142,974,930.05/214,364,487.80 = 72,809,338.50/x
  3. Step 3: Cross multiply
    142,974,930.05x = 214,364,487.80 × 72,809,338.50
  4. Step 4: Simplify right side
    142,974,930.05x = 15,607,736,554,245,272
  5. Step 5: Solve for x
    x = 15,607,736,554,245,272/142,974,930.05
  6. Step 6: Final answer
    x = 109,164,148.91

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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.