Home / 315,440,914.58-473,266,491.39-198,721,520.10

Finding the Fourth Proportional to 315,440,914.58, 473,266,491.39 and 198,721,520.10

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Solution

The fourth proportional to 315,440,914.58, 473,266,491.39 and 198,721,520.10 is: 298,148,503.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,440,914.58 : 473,266,491.39 = 198,721,520.10 : x
  2. Step 2: Convert to fraction form
    315,440,914.58/473,266,491.39 = 198,721,520.10/x
  3. Step 3: Cross multiply
    315,440,914.58x = 473,266,491.39 × 198,721,520.10
  4. Step 4: Simplify right side
    315,440,914.58x = 94,048,236,581,414,352
  5. Step 5: Solve for x
    x = 94,048,236,581,414,352/315,440,914.58
  6. Step 6: Final answer
    x = 298,148,503.36

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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.