Home / 112,663,938.89-168,704,858.78-77,756,765.78

Finding the Fourth Proportional to 112,663,938.89, 168,704,858.78 and 77,756,765.78

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Solution

The fourth proportional to 112,663,938.89, 168,704,858.78 and 77,756,765.78 is: 116,434,276.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,663,938.89 : 168,704,858.78 = 77,756,765.78 : x
  2. Step 2: Convert to fraction form
    112,663,938.89/168,704,858.78 = 77,756,765.78/x
  3. Step 3: Cross multiply
    112,663,938.89x = 168,704,858.78 × 77,756,765.78
  4. Step 4: Simplify right side
    112,663,938.89x = 13,117,944,191,103,802
  5. Step 5: Solve for x
    x = 13,117,944,191,103,802/112,663,938.89
  6. Step 6: Final answer
    x = 116,434,276.31

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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.