Home / 286,006,538.79-428,468,328.72-169,071,804.09

Finding the Fourth Proportional to 286,006,538.79, 428,468,328.72 and 169,071,804.09

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Solution

The fourth proportional to 286,006,538.79, 428,468,328.72 and 169,071,804.09 is: 253,287,612.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,006,538.79 : 428,468,328.72 = 169,071,804.09 : x
  2. Step 2: Convert to fraction form
    286,006,538.79/428,468,328.72 = 169,071,804.09/x
  3. Step 3: Cross multiply
    286,006,538.79x = 428,468,328.72 × 169,071,804.09
  4. Step 4: Simplify right side
    286,006,538.79x = 72,441,913,332,117,568
  5. Step 5: Solve for x
    x = 72,441,913,332,117,568/286,006,538.79
  6. Step 6: Final answer
    x = 253,287,612.37

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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.