Home / 540,985,585.40-811,512,040.12-195,942,201.72

Finding the Fourth Proportional to 540,985,585.40, 811,512,040.12 and 195,942,201.72

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Solution

The fourth proportional to 540,985,585.40, 811,512,040.12 and 195,942,201.72 is: 293,925,494.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,985,585.40 : 811,512,040.12 = 195,942,201.72 : x
  2. Step 2: Convert to fraction form
    540,985,585.40/811,512,040.12 = 195,942,201.72/x
  3. Step 3: Cross multiply
    540,985,585.40x = 811,512,040.12 × 195,942,201.72
  4. Step 4: Simplify right side
    540,985,585.40x = 159,009,455,863,401,760
  5. Step 5: Solve for x
    x = 159,009,455,863,401,760/540,985,585.40
  6. Step 6: Final answer
    x = 293,925,494.79

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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.