Home / 135,270,009-186,673,078.98-73,390,622.76

Finding the Fourth Proportional to 135,270,009, 186,673,078.98 and 73,390,622.76

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Solution

The fourth proportional to 135,270,009, 186,673,078.98 and 73,390,622.76 is: 101,279,312.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,270,009 : 186,673,078.98 = 73,390,622.76 : x
  2. Step 2: Convert to fraction form
    135,270,009/186,673,078.98 = 73,390,622.76/x
  3. Step 3: Cross multiply
    135,270,009x = 186,673,078.98 × 73,390,622.76
  4. Step 4: Simplify right side
    135,270,009x = 13,700,053,518,868,866
  5. Step 5: Solve for x
    x = 13,700,053,518,868,866/135,270,009
  6. Step 6: Final answer
    x = 101,279,312.54

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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.