Home / 154,655,749.56-213,419,197.26-85,036,988.28

Finding the Fourth Proportional to 154,655,749.56, 213,419,197.26 and 85,036,988.28

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Solution

The fourth proportional to 154,655,749.56, 213,419,197.26 and 85,036,988.28 is: 117,347,889.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,655,749.56 : 213,419,197.26 = 85,036,988.28 : x
  2. Step 2: Convert to fraction form
    154,655,749.56/213,419,197.26 = 85,036,988.28/x
  3. Step 3: Cross multiply
    154,655,749.56x = 213,419,197.26 × 85,036,988.28
  4. Step 4: Simplify right side
    154,655,749.56x = 18,148,525,776,125,628
  5. Step 5: Solve for x
    x = 18,148,525,776,125,628/154,655,749.56
  6. Step 6: Final answer
    x = 117,347,889.28

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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.