Home / 398,698,312.20-598,047,468.30-362,347,747.80

Finding the Fourth Proportional to 398,698,312.20, 598,047,468.30 and 362,347,747.80

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Solution

The fourth proportional to 398,698,312.20, 598,047,468.30 and 362,347,747.80 is: 543,521,621.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,698,312.20 : 598,047,468.30 = 362,347,747.80 : x
  2. Step 2: Convert to fraction form
    398,698,312.20/598,047,468.30 = 362,347,747.80/x
  3. Step 3: Cross multiply
    398,698,312.20x = 598,047,468.30 × 362,347,747.80
  4. Step 4: Simplify right side
    398,698,312.20x = 216,701,153,215,996,896
  5. Step 5: Solve for x
    x = 216,701,153,215,996,896/398,698,312.20
  6. Step 6: Final answer
    x = 543,521,621.70

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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.