Home / 154,681,847.24-213,456,688.36-85,067,220.60

Finding the Fourth Proportional to 154,681,847.24, 213,456,688.36 and 85,067,220.60

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Solution

The fourth proportional to 154,681,847.24, 213,456,688.36 and 85,067,220.60 is: 117,390,421.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,681,847.24 : 213,456,688.36 = 85,067,220.60 : x
  2. Step 2: Convert to fraction form
    154,681,847.24/213,456,688.36 = 85,067,220.60/x
  3. Step 3: Cross multiply
    154,681,847.24x = 213,456,688.36 × 85,067,220.60
  4. Step 4: Simplify right side
    154,681,847.24x = 18,158,167,197,265,572
  5. Step 5: Solve for x
    x = 18,158,167,197,265,572/154,681,847.24
  6. Step 6: Final answer
    x = 117,390,421.19

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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.