Home / 156,980,618.62-216,633,254.26-87,382,441

Finding the Fourth Proportional to 156,980,618.62, 216,633,254.26 and 87,382,441

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Solution

The fourth proportional to 156,980,618.62, 216,633,254.26 and 87,382,441 is: 120,587,768.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,980,618.62 : 216,633,254.26 = 87,382,441 : x
  2. Step 2: Convert to fraction form
    156,980,618.62/216,633,254.26 = 87,382,441/x
  3. Step 3: Cross multiply
    156,980,618.62x = 216,633,254.26 × 87,382,441
  4. Step 4: Simplify right side
    156,980,618.62x = 18,929,942,559,012,448
  5. Step 5: Solve for x
    x = 18,929,942,559,012,448/156,980,618.62
  6. Step 6: Final answer
    x = 120,587,768.89

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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.