Home / 85,031,801.72-117,336,400.86-47,352,119.08

Finding the Fourth Proportional to 85,031,801.72, 117,336,400.86 and 47,352,119.08

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Solution

The fourth proportional to 85,031,801.72, 117,336,400.86 and 47,352,119.08 is: 65,341,755.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,031,801.72 : 117,336,400.86 = 47,352,119.08 : x
  2. Step 2: Convert to fraction form
    85,031,801.72/117,336,400.86 = 47,352,119.08/x
  3. Step 3: Cross multiply
    85,031,801.72x = 117,336,400.86 × 47,352,119.08
  4. Step 4: Simplify right side
    85,031,801.72x = 5,556,127,225,941,334
  5. Step 5: Solve for x
    x = 5,556,127,225,941,334/85,031,801.72
  6. Step 6: Final answer
    x = 65,341,755.83

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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.