Home / 557,353,100.16-835,931,890.80-212,327,431.20

Finding the Fourth Proportional to 557,353,100.16, 835,931,890.80 and 212,327,431.20

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Solution

The fourth proportional to 557,353,100.16, 835,931,890.80 and 212,327,431.20 is: 318,453,904.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,353,100.16 : 835,931,890.80 = 212,327,431.20 : x
  2. Step 2: Convert to fraction form
    557,353,100.16/835,931,890.80 = 212,327,431.20/x
  3. Step 3: Cross multiply
    557,353,100.16x = 835,931,890.80 × 212,327,431.20
  4. Step 4: Simplify right side
    557,353,100.16x = 177,491,271,031,722,880
  5. Step 5: Solve for x
    x = 177,491,271,031,722,880/557,353,100.16
  6. Step 6: Final answer
    x = 318,453,904.68

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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.