Home / 154,655,746.56-213,419,193.12-85,036,985.28

Finding the Fourth Proportional to 154,655,746.56, 213,419,193.12 and 85,036,985.28

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Solution

The fourth proportional to 154,655,746.56, 213,419,193.12 and 85,036,985.28 is: 117,347,885.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,655,746.56 : 213,419,193.12 = 85,036,985.28 : x
  2. Step 2: Convert to fraction form
    154,655,746.56/213,419,193.12 = 85,036,985.28/x
  3. Step 3: Cross multiply
    154,655,746.56x = 213,419,193.12 × 85,036,985.28
  4. Step 4: Simplify right side
    154,655,746.56x = 18,148,524,783,814,916
  5. Step 5: Solve for x
    x = 18,148,524,783,814,916/154,655,746.56
  6. Step 6: Final answer
    x = 117,347,885.14

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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.