Home / 193,422,054.40-289,881,139.20-78,312,371.20

Finding the Fourth Proportional to 193,422,054.40, 289,881,139.20 and 78,312,371.20

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Solution

The fourth proportional to 193,422,054.40, 289,881,139.20 and 78,312,371.20 is: 117,366,550.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,422,054.40 : 289,881,139.20 = 78,312,371.20 : x
  2. Step 2: Convert to fraction form
    193,422,054.40/289,881,139.20 = 78,312,371.20/x
  3. Step 3: Cross multiply
    193,422,054.40x = 289,881,139.20 × 78,312,371.20
  4. Step 4: Simplify right side
    193,422,054.40x = 22,701,279,376,909,272
  5. Step 5: Solve for x
    x = 22,701,279,376,909,272/193,422,054.40
  6. Step 6: Final answer
    x = 117,366,550.82

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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.