Home / 386,207,999.60-579,311,999.40-368,292,095.60

Finding the Fourth Proportional to 386,207,999.60, 579,311,999.40 and 368,292,095.60

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Solution

The fourth proportional to 386,207,999.60, 579,311,999.40 and 368,292,095.60 is: 552,438,143.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,207,999.60 : 579,311,999.40 = 368,292,095.60 : x
  2. Step 2: Convert to fraction form
    386,207,999.60/579,311,999.40 = 368,292,095.60/x
  3. Step 3: Cross multiply
    386,207,999.60x = 579,311,999.40 × 368,292,095.60
  4. Step 4: Simplify right side
    386,207,999.60x = 213,356,030,265,251,936
  5. Step 5: Solve for x
    x = 213,356,030,265,251,936/386,207,999.60
  6. Step 6: Final answer
    x = 552,438,143.40

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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.