Home / 86,315,615.90-129,260,847.45-40,824,266.30

Finding the Fourth Proportional to 86,315,615.90, 129,260,847.45 and 40,824,266.30

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Solution

The fourth proportional to 86,315,615.90, 129,260,847.45 and 40,824,266.30 is: 61,135,858.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,315,615.90 : 129,260,847.45 = 40,824,266.30 : x
  2. Step 2: Convert to fraction form
    86,315,615.90/129,260,847.45 = 40,824,266.30/x
  3. Step 3: Cross multiply
    86,315,615.90x = 129,260,847.45 × 40,824,266.30
  4. Step 4: Simplify right side
    86,315,615.90x = 5,276,979,258,462,476
  5. Step 5: Solve for x
    x = 5,276,979,258,462,476/86,315,615.90
  6. Step 6: Final answer
    x = 61,135,858.25

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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.