Home / 187,172,856.54-258,211,500.36-121,114,678.68

Finding the Fourth Proportional to 187,172,856.54, 258,211,500.36 and 121,114,678.68

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Solution

The fourth proportional to 187,172,856.54, 258,211,500.36 and 121,114,678.68 is: 167,081,934.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,172,856.54 : 258,211,500.36 = 121,114,678.68 : x
  2. Step 2: Convert to fraction form
    187,172,856.54/258,211,500.36 = 121,114,678.68/x
  3. Step 3: Cross multiply
    187,172,856.54x = 258,211,500.36 × 121,114,678.68
  4. Step 4: Simplify right side
    187,172,856.54x = 31,273,202,897,582,108
  5. Step 5: Solve for x
    x = 31,273,202,897,582,108/187,172,856.54
  6. Step 6: Final answer
    x = 167,081,934.18

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1.5x scale

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.