Home / 71,287,070.82-98,359,289.54-40,347,241.02

Finding the Fourth Proportional to 71,287,070.82, 98,359,289.54 and 40,347,241.02

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Solution

The fourth proportional to 71,287,070.82, 98,359,289.54 and 40,347,241.02 is: 55,669,645.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,287,070.82 : 98,359,289.54 = 40,347,241.02 : x
  2. Step 2: Convert to fraction form
    71,287,070.82/98,359,289.54 = 40,347,241.02/x
  3. Step 3: Cross multiply
    71,287,070.82x = 98,359,289.54 × 40,347,241.02
  4. Step 4: Simplify right side
    71,287,070.82x = 3,968,525,961,626,345.50
  5. Step 5: Solve for x
    x = 3,968,525,961,626,345.50/71,287,070.82
  6. Step 6: Final answer
    x = 55,669,645.50

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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.