Home / 385,745,804.56-532,328,805.19-209,533,937.74

Finding the Fourth Proportional to 385,745,804.56, 532,328,805.19 and 209,533,937.74

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Solution

The fourth proportional to 385,745,804.56, 532,328,805.19 and 209,533,937.74 is: 289,156,614.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,745,804.56 : 532,328,805.19 = 209,533,937.74 : x
  2. Step 2: Convert to fraction form
    385,745,804.56/532,328,805.19 = 209,533,937.74/x
  3. Step 3: Cross multiply
    385,745,804.56x = 532,328,805.19 × 209,533,937.74
  4. Step 4: Simplify right side
    385,745,804.56x = 111,540,950,722,137,664
  5. Step 5: Solve for x
    x = 111,540,950,722,137,664/385,745,804.56
  6. Step 6: Final answer
    x = 289,156,614.03

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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.