Home / 384,843,420.91-531,063,466.81-217,569,681.16

Finding the Fourth Proportional to 384,843,420.91, 531,063,466.81 and 217,569,681.16

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Solution

The fourth proportional to 384,843,420.91, 531,063,466.81 and 217,569,681.16 is: 300,234,596.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,843,420.91 : 531,063,466.81 = 217,569,681.16 : x
  2. Step 2: Convert to fraction form
    384,843,420.91/531,063,466.81 = 217,569,681.16/x
  3. Step 3: Cross multiply
    384,843,420.91x = 531,063,466.81 × 217,569,681.16
  4. Step 4: Simplify right side
    384,843,420.91x = 115,543,309,147,704,352
  5. Step 5: Solve for x
    x = 115,543,309,147,704,352/384,843,420.91
  6. Step 6: Final answer
    x = 300,234,596.38

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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.