Home / 115,725,160.40-173,786,806.20-81,884,008.40

Finding the Fourth Proportional to 115,725,160.40, 173,786,806.20 and 81,884,008.40

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Solution

The fourth proportional to 115,725,160.40, 173,786,806.20 and 81,884,008.40 is: 122,966,866.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,725,160.40 : 173,786,806.20 = 81,884,008.40 : x
  2. Step 2: Convert to fraction form
    115,725,160.40/173,786,806.20 = 81,884,008.40/x
  3. Step 3: Cross multiply
    115,725,160.40x = 173,786,806.20 × 81,884,008.40
  4. Step 4: Simplify right side
    115,725,160.40x = 14,230,360,298,689,972
  5. Step 5: Solve for x
    x = 14,230,360,298,689,972/115,725,160.40
  6. Step 6: Final answer
    x = 122,966,866.06

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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.