Home / 156,914,853.75-216,544,490.33-86,358,587.67

Finding the Fourth Proportional to 156,914,853.75, 216,544,490.33 and 86,358,587.67

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Solution

The fourth proportional to 156,914,853.75, 216,544,490.33 and 86,358,587.67 is: 119,175,947.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,914,853.75 : 216,544,490.33 = 86,358,587.67 : x
  2. Step 2: Convert to fraction form
    156,914,853.75/216,544,490.33 = 86,358,587.67/x
  3. Step 3: Cross multiply
    156,914,853.75x = 216,544,490.33 × 86,358,587.67
  4. Step 4: Simplify right side
    156,914,853.75x = 18,700,476,352,618,772
  5. Step 5: Solve for x
    x = 18,700,476,352,618,772/156,914,853.75
  6. Step 6: Final answer
    x = 119,175,947.37

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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.