Home / 386,146,031.60-579,219,047.40-354,401,289.20

Finding the Fourth Proportional to 386,146,031.60, 579,219,047.40 and 354,401,289.20

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Solution

The fourth proportional to 386,146,031.60, 579,219,047.40 and 354,401,289.20 is: 531,601,933.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,146,031.60 : 579,219,047.40 = 354,401,289.20 : x
  2. Step 2: Convert to fraction form
    386,146,031.60/579,219,047.40 = 354,401,289.20/x
  3. Step 3: Cross multiply
    386,146,031.60x = 579,219,047.40 × 354,401,289.20
  4. Step 4: Simplify right side
    386,146,031.60x = 205,275,977,127,755,904
  5. Step 5: Solve for x
    x = 205,275,977,127,755,904/386,146,031.60
  6. Step 6: Final answer
    x = 531,601,933.80

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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.