Home / 283,085,406.56-390,645,295.32-157,644,072.80

Finding the Fourth Proportional to 283,085,406.56, 390,645,295.32 and 157,644,072.80

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Solution

The fourth proportional to 283,085,406.56, 390,645,295.32 and 157,644,072.80 is: 217,541,822.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,085,406.56 : 390,645,295.32 = 157,644,072.80 : x
  2. Step 2: Convert to fraction form
    283,085,406.56/390,645,295.32 = 157,644,072.80/x
  3. Step 3: Cross multiply
    283,085,406.56x = 390,645,295.32 × 157,644,072.80
  4. Step 4: Simplify right side
    283,085,406.56x = 61,582,915,374,403,584
  5. Step 5: Solve for x
    x = 61,582,915,374,403,584/283,085,406.56
  6. Step 6: Final answer
    x = 217,541,822.88

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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.