Home / 112,663,943.78-168,704,866.08-77,756,770.65

Finding the Fourth Proportional to 112,663,943.78, 168,704,866.08 and 77,756,770.65

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Solution

The fourth proportional to 112,663,943.78, 168,704,866.08 and 77,756,770.65 is: 116,434,283.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,663,943.78 : 168,704,866.08 = 77,756,770.65 : x
  2. Step 2: Convert to fraction form
    112,663,943.78/168,704,866.08 = 77,756,770.65/x
  3. Step 3: Cross multiply
    112,663,943.78x = 168,704,866.08 × 77,756,770.65
  4. Step 4: Simplify right side
    112,663,943.78x = 13,117,945,579,321,526
  5. Step 5: Solve for x
    x = 13,117,945,579,321,526/112,663,943.78
  6. Step 6: Final answer
    x = 116,434,283.59

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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.