Home / 356,292,386.40-534,438,579.60-321,855,009.60

Finding the Fourth Proportional to 356,292,386.40, 534,438,579.60 and 321,855,009.60

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Solution

The fourth proportional to 356,292,386.40, 534,438,579.60 and 321,855,009.60 is: 482,782,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,292,386.40 : 534,438,579.60 = 321,855,009.60 : x
  2. Step 2: Convert to fraction form
    356,292,386.40/534,438,579.60 = 321,855,009.60/x
  3. Step 3: Cross multiply
    356,292,386.40x = 534,438,579.60 × 321,855,009.60
  4. Step 4: Simplify right side
    356,292,386.40x = 172,011,734,167,768,384
  5. Step 5: Solve for x
    x = 172,011,734,167,768,384/356,292,386.40
  6. Step 6: Final answer
    x = 482,782,514.40

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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.