Home / 728,740,672,272.85-1,005,177,890,967.30-468,647,206,865.15

Finding the Fourth Proportional to 728,740,672,272.85, 1,005,177,890,967.30 and 468,647,206,865.15

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Solution

The fourth proportional to 728,740,672,272.85, 1,005,177,890,967.30 and 468,647,206,865.15 is: 646,421,736,741.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,740,672,272.85 : 1,005,177,890,967.30 = 468,647,206,865.15 : x
  2. Step 2: Convert to fraction form
    728,740,672,272.85/1,005,177,890,967.30 = 468,647,206,865.15/x
  3. Step 3: Cross multiply
    728,740,672,272.85x = 1,005,177,890,967.30 × 468,647,206,865.15
  4. Step 4: Simplify right side
    728,740,672,272.85x = 471,073,811,004,427,495,014,400
  5. Step 5: Solve for x
    x = 471,073,811,004,427,495,014,400/728,740,672,272.85
  6. Step 6: Final answer
    x = 646,421,736,741.01

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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.