Home / 318,218,197.40-439,136,702.34-178,989,053.48

Finding the Fourth Proportional to 318,218,197.40, 439,136,702.34 and 178,989,053.48

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Solution

The fourth proportional to 318,218,197.40, 439,136,702.34 and 178,989,053.48 is: 247,002,413.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,218,197.40 : 439,136,702.34 = 178,989,053.48 : x
  2. Step 2: Convert to fraction form
    318,218,197.40/439,136,702.34 = 178,989,053.48/x
  3. Step 3: Cross multiply
    318,218,197.40x = 439,136,702.34 × 178,989,053.48
  4. Step 4: Simplify right side
    318,218,197.40x = 78,600,662,700,165,088
  5. Step 5: Solve for x
    x = 78,600,662,700,165,088/318,218,197.40
  6. Step 6: Final answer
    x = 247,002,413.26

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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.