Home / 386,891,143.60-579,580,888.20-233,080,308.40

Finding the Fourth Proportional to 386,891,143.60, 579,580,888.20 and 233,080,308.40

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Solution

The fourth proportional to 386,891,143.60, 579,580,888.20 and 233,080,308.40 is: 349,165,118.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,891,143.60 : 579,580,888.20 = 233,080,308.40 : x
  2. Step 2: Convert to fraction form
    386,891,143.60/579,580,888.20 = 233,080,308.40/x
  3. Step 3: Cross multiply
    386,891,143.60x = 579,580,888.20 × 233,080,308.40
  4. Step 4: Simplify right side
    386,891,143.60x = 135,088,892,164,401,936
  5. Step 5: Solve for x
    x = 135,088,892,164,401,936/386,891,143.60
  6. Step 6: Final answer
    x = 349,165,118.92

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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.