Home / 185,345,817.69-278,009,742.89-68,783,897.84

Finding the Fourth Proportional to 185,345,817.69, 278,009,742.89 and 68,783,897.84

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Solution

The fourth proportional to 185,345,817.69, 278,009,742.89 and 68,783,897.84 is: 103,172,512.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,345,817.69 : 278,009,742.89 = 68,783,897.84 : x
  2. Step 2: Convert to fraction form
    185,345,817.69/278,009,742.89 = 68,783,897.84/x
  3. Step 3: Cross multiply
    185,345,817.69x = 278,009,742.89 × 68,783,897.84
  4. Step 4: Simplify right side
    185,345,817.69x = 19,122,593,754,251,432
  5. Step 5: Solve for x
    x = 19,122,593,754,251,432/185,345,817.69
  6. Step 6: Final answer
    x = 103,172,512.84

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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.