Home / 312,738,570.48-431,573,487.03-173,506,342.92

Finding the Fourth Proportional to 312,738,570.48, 431,573,487.03 and 173,506,342.92

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Solution

The fourth proportional to 312,738,570.48, 431,573,487.03 and 173,506,342.92 is: 239,435,568.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,738,570.48 : 431,573,487.03 = 173,506,342.92 : x
  2. Step 2: Convert to fraction form
    312,738,570.48/431,573,487.03 = 173,506,342.92/x
  3. Step 3: Cross multiply
    312,738,570.48x = 431,573,487.03 × 173,506,342.92
  4. Step 4: Simplify right side
    312,738,570.48x = 74,880,737,435,807,344
  5. Step 5: Solve for x
    x = 74,880,737,435,807,344/312,738,570.48
  6. Step 6: Final answer
    x = 239,435,568.57

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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.