Home / 142,974,798.38-214,364,290.38-72,809,206.34

Finding the Fourth Proportional to 142,974,798.38, 214,364,290.38 and 72,809,206.34

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Solution

The fourth proportional to 142,974,798.38, 214,364,290.38 and 72,809,206.34 is: 109,163,950.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,974,798.38 : 214,364,290.38 = 72,809,206.34 : x
  2. Step 2: Convert to fraction form
    142,974,798.38/214,364,290.38 = 72,809,206.34/x
  3. Step 3: Cross multiply
    142,974,798.38x = 214,364,290.38 × 72,809,206.34
  4. Step 4: Simplify right side
    142,974,798.38x = 15,607,693,848,860,240
  5. Step 5: Solve for x
    x = 15,607,693,848,860,240/142,974,798.38
  6. Step 6: Final answer
    x = 109,163,950.75

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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.