Home / 647,608,489.23-971,480,773.85-210,943,217.55

Finding the Fourth Proportional to 647,608,489.23, 971,480,773.85 and 210,943,217.55

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Solution

The fourth proportional to 647,608,489.23, 971,480,773.85 and 210,943,217.55 is: 316,436,988.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,608,489.23 : 971,480,773.85 = 210,943,217.55 : x
  2. Step 2: Convert to fraction form
    647,608,489.23/971,480,773.85 = 210,943,217.55/x
  3. Step 3: Cross multiply
    647,608,489.23x = 971,480,773.85 × 210,943,217.55
  4. Step 4: Simplify right side
    647,608,489.23x = 204,927,280,222,828,192
  5. Step 5: Solve for x
    x = 204,927,280,222,828,192/647,608,489.23
  6. Step 6: Final answer
    x = 316,436,988.75

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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.