Home / 285,388,783.48-393,829,822.02-167,921,721.64

Finding the Fourth Proportional to 285,388,783.48, 393,829,822.02 and 167,921,721.64

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Solution

The fourth proportional to 285,388,783.48, 393,829,822.02 and 167,921,721.64 is: 231,728,034.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,388,783.48 : 393,829,822.02 = 167,921,721.64 : x
  2. Step 2: Convert to fraction form
    285,388,783.48/393,829,822.02 = 167,921,721.64/x
  3. Step 3: Cross multiply
    285,388,783.48x = 393,829,822.02 × 167,921,721.64
  4. Step 4: Simplify right side
    285,388,783.48x = 66,132,581,746,773,176
  5. Step 5: Solve for x
    x = 66,132,581,746,773,176/285,388,783.48
  6. Step 6: Final answer
    x = 231,728,034.09

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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.