Home / 136,270,506.78-188,054,064.45-77,533,170.48

Finding the Fourth Proportional to 136,270,506.78, 188,054,064.45 and 77,533,170.48

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Solution

The fourth proportional to 136,270,506.78, 188,054,064.45 and 77,533,170.48 is: 106,996,210.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,270,506.78 : 188,054,064.45 = 77,533,170.48 : x
  2. Step 2: Convert to fraction form
    136,270,506.78/188,054,064.45 = 77,533,170.48/x
  3. Step 3: Cross multiply
    136,270,506.78x = 188,054,064.45 × 77,533,170.48
  4. Step 4: Simplify right side
    136,270,506.78x = 14,580,427,838,458,758
  5. Step 5: Solve for x
    x = 14,580,427,838,458,758/136,270,506.78
  6. Step 6: Final answer
    x = 106,996,210.57

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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.