Home / 137,416,732.38-189,636,360.66-74,692,977.84

Finding the Fourth Proportional to 137,416,732.38, 189,636,360.66 and 74,692,977.84

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Solution

The fourth proportional to 137,416,732.38, 189,636,360.66 and 74,692,977.84 is: 103,076,999.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,416,732.38 : 189,636,360.66 = 74,692,977.84 : x
  2. Step 2: Convert to fraction form
    137,416,732.38/189,636,360.66 = 74,692,977.84/x
  3. Step 3: Cross multiply
    137,416,732.38x = 189,636,360.66 × 74,692,977.84
  4. Step 4: Simplify right side
    137,416,732.38x = 14,164,504,484,435,628
  5. Step 5: Solve for x
    x = 14,164,504,484,435,628/137,416,732.38
  6. Step 6: Final answer
    x = 103,076,999.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.