Home / 185,446,863.80-278,353,371.54-139,227,978.68

Finding the Fourth Proportional to 185,446,863.80, 278,353,371.54 and 139,227,978.68

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Solution

The fourth proportional to 185,446,863.80, 278,353,371.54 and 139,227,978.68 is: 208,979,415.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,446,863.80 : 278,353,371.54 = 139,227,978.68 : x
  2. Step 2: Convert to fraction form
    185,446,863.80/278,353,371.54 = 139,227,978.68/x
  3. Step 3: Cross multiply
    185,446,863.80x = 278,353,371.54 × 139,227,978.68
  4. Step 4: Simplify right side
    185,446,863.80x = 38,754,577,278,277,240
  5. Step 5: Solve for x
    x = 38,754,577,278,277,240/185,446,863.80
  6. Step 6: Final answer
    x = 208,979,415.90

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1.5x scale

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.