Home / 386,326,083.60-579,489,125.40-127,581,238.80

Finding the Fourth Proportional to 386,326,083.60, 579,489,125.40 and 127,581,238.80

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Solution

The fourth proportional to 386,326,083.60, 579,489,125.40 and 127,581,238.80 is: 191,371,858.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,326,083.60 : 579,489,125.40 = 127,581,238.80 : x
  2. Step 2: Convert to fraction form
    386,326,083.60/579,489,125.40 = 127,581,238.80/x
  3. Step 3: Cross multiply
    386,326,083.60x = 579,489,125.40 × 127,581,238.80
  4. Step 4: Simplify right side
    386,326,083.60x = 73,931,940,489,660,544
  5. Step 5: Solve for x
    x = 73,931,940,489,660,544/386,326,083.60
  6. Step 6: Final answer
    x = 191,371,858.20

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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.