Home / 287,684,769.60-431,569,144.80-93,563,150.40

Finding the Fourth Proportional to 287,684,769.60, 431,569,144.80 and 93,563,150.40

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Solution

The fourth proportional to 287,684,769.60, 431,569,144.80 and 93,563,150.40 is: 140,358,382.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,684,769.60 : 431,569,144.80 = 93,563,150.40 : x
  2. Step 2: Convert to fraction form
    287,684,769.60/431,569,144.80 = 93,563,150.40/x
  3. Step 3: Cross multiply
    287,684,769.60x = 431,569,144.80 × 93,563,150.40
  4. Step 4: Simplify right side
    287,684,769.60x = 40,378,968,802,921,784
  5. Step 5: Solve for x
    x = 40,378,968,802,921,784/287,684,769.60
  6. Step 6: Final answer
    x = 140,358,382.06

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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.