Home / 78,477,407.10-117,716,110.65-61,452,632.70

Finding the Fourth Proportional to 78,477,407.10, 117,716,110.65 and 61,452,632.70

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Solution

The fourth proportional to 78,477,407.10, 117,716,110.65 and 61,452,632.70 is: 92,178,949.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,477,407.10 : 117,716,110.65 = 61,452,632.70 : x
  2. Step 2: Convert to fraction form
    78,477,407.10/117,716,110.65 = 61,452,632.70/x
  3. Step 3: Cross multiply
    78,477,407.10x = 117,716,110.65 × 61,452,632.70
  4. Step 4: Simplify right side
    78,477,407.10x = 7,233,964,910,647,009
  5. Step 5: Solve for x
    x = 7,233,964,910,647,009/78,477,407.10
  6. Step 6: Final answer
    x = 92,178,949.05

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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.