Home / 743,437,846.91-1,025,946,273.02-408,944,636.30

Finding the Fourth Proportional to 743,437,846.91, 1,025,946,273.02 and 408,944,636.30

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Solution

The fourth proportional to 743,437,846.91, 1,025,946,273.02 and 408,944,636.30 is: 564,344,722.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,437,846.91 : 1,025,946,273.02 = 408,944,636.30 : x
  2. Step 2: Convert to fraction form
    743,437,846.91/1,025,946,273.02 = 408,944,636.30/x
  3. Step 3: Cross multiply
    743,437,846.91x = 1,025,946,273.02 × 408,944,636.30
  4. Step 4: Simplify right side
    743,437,846.91x = 419,555,225,476,329,984
  5. Step 5: Solve for x
    x = 419,555,225,476,329,984/743,437,846.91
  6. Step 6: Final answer
    x = 564,344,722.59

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1.5x scale

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.