Home / 830,540,163.60-1,246,288,542.30-313,341,782.40

Finding the Fourth Proportional to 830,540,163.60, 1,246,288,542.30 and 313,341,782.40

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Solution

The fourth proportional to 830,540,163.60, 1,246,288,542.30 and 313,341,782.40 is: 470,193,122.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,540,163.60 : 1,246,288,542.30 = 313,341,782.40 : x
  2. Step 2: Convert to fraction form
    830,540,163.60/1,246,288,542.30 = 313,341,782.40/x
  3. Step 3: Cross multiply
    830,540,163.60x = 1,246,288,542.30 × 313,341,782.40
  4. Step 4: Simplify right side
    830,540,163.60x = 390,514,273,228,979,776
  5. Step 5: Solve for x
    x = 390,514,273,228,979,776/830,540,163.60
  6. Step 6: Final answer
    x = 470,193,122.91

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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.