Home / 323,712,145.70-485,568,218.55-286,298,699.30

Finding the Fourth Proportional to 323,712,145.70, 485,568,218.55 and 286,298,699.30

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Solution

The fourth proportional to 323,712,145.70, 485,568,218.55 and 286,298,699.30 is: 429,448,048.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,712,145.70 : 485,568,218.55 = 286,298,699.30 : x
  2. Step 2: Convert to fraction form
    323,712,145.70/485,568,218.55 = 286,298,699.30/x
  3. Step 3: Cross multiply
    323,712,145.70x = 485,568,218.55 × 286,298,699.30
  4. Step 4: Simplify right side
    323,712,145.70x = 139,017,549,392,283,136
  5. Step 5: Solve for x
    x = 139,017,549,392,283,136/323,712,145.70
  6. Step 6: Final answer
    x = 429,448,048.95

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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.