Home / 285,164,881.50-393,517,353.15-161,402,901.42

Finding the Fourth Proportional to 285,164,881.50, 393,517,353.15 and 161,402,901.42

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Solution

The fourth proportional to 285,164,881.50, 393,517,353.15 and 161,402,901.42 is: 222,730,240.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,164,881.50 : 393,517,353.15 = 161,402,901.42 : x
  2. Step 2: Convert to fraction form
    285,164,881.50/393,517,353.15 = 161,402,901.42/x
  3. Step 3: Cross multiply
    285,164,881.50x = 393,517,353.15 × 161,402,901.42
  4. Step 4: Simplify right side
    285,164,881.50x = 63,514,842,557,528,768
  5. Step 5: Solve for x
    x = 63,514,842,557,528,768/285,164,881.50
  6. Step 6: Final answer
    x = 222,730,240.22

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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.