Home / 78,452,047.63-108,264,805.20-43,173,911.50

Finding the Fourth Proportional to 78,452,047.63, 108,264,805.20 and 43,173,911.50

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Solution

The fourth proportional to 78,452,047.63, 108,264,805.20 and 43,173,911.50 is: 59,580,536.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,452,047.63 : 108,264,805.20 = 43,173,911.50 : x
  2. Step 2: Convert to fraction form
    78,452,047.63/108,264,805.20 = 43,173,911.50/x
  3. Step 3: Cross multiply
    78,452,047.63x = 108,264,805.20 × 43,173,911.50
  4. Step 4: Simplify right side
    78,452,047.63x = 4,674,215,118,269,540
  5. Step 5: Solve for x
    x = 4,674,215,118,269,540/78,452,047.63
  6. Step 6: Final answer
    x = 59,580,536.89

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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.