Home / 112,328,128.76-155,009,930.64-62,768,909.70

Finding the Fourth Proportional to 112,328,128.76, 155,009,930.64 and 62,768,909.70

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Solution

The fourth proportional to 112,328,128.76, 155,009,930.64 and 62,768,909.70 is: 86,619,482.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,328,128.76 : 155,009,930.64 = 62,768,909.70 : x
  2. Step 2: Convert to fraction form
    112,328,128.76/155,009,930.64 = 62,768,909.70/x
  3. Step 3: Cross multiply
    112,328,128.76x = 155,009,930.64 × 62,768,909.70
  4. Step 4: Simplify right side
    112,328,128.76x = 9,729,804,338,945,422
  5. Step 5: Solve for x
    x = 9,729,804,338,945,422/112,328,128.76
  6. Step 6: Final answer
    x = 86,619,482.11

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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.