Home / 285,164,572.88-393,516,928.59-161,402,592.80

Finding the Fourth Proportional to 285,164,572.88, 393,516,928.59 and 161,402,592.80

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Solution

The fourth proportional to 285,164,572.88, 393,516,928.59 and 161,402,592.80 is: 222,729,815.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,164,572.88 : 393,516,928.59 = 161,402,592.80 : x
  2. Step 2: Convert to fraction form
    285,164,572.88/393,516,928.59 = 161,402,592.80/x
  3. Step 3: Cross multiply
    285,164,572.88x = 393,516,928.59 × 161,402,592.80
  4. Step 4: Simplify right side
    285,164,572.88x = 63,514,652,585,118,448
  5. Step 5: Solve for x
    x = 63,514,652,585,118,448/285,164,572.88
  6. Step 6: Final answer
    x = 222,729,815.08

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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.