Home / 521,520,776,067.60-782,281,164,101.40-379,363,284,637.20

Finding the Fourth Proportional to 521,520,776,067.60, 782,281,164,101.40 and 379,363,284,637.20

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Solution

The fourth proportional to 521,520,776,067.60, 782,281,164,101.40 and 379,363,284,637.20 is: 569,044,926,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,776,067.60 : 782,281,164,101.40 = 379,363,284,637.20 : x
  2. Step 2: Convert to fraction form
    521,520,776,067.60/782,281,164,101.40 = 379,363,284,637.20/x
  3. Step 3: Cross multiply
    521,520,776,067.60x = 782,281,164,101.40 × 379,363,284,637.20
  4. Step 4: Simplify right side
    521,520,776,067.60x = 296,768,751,923,319,598,481,408
  5. Step 5: Solve for x
    x = 296,768,751,923,319,598,481,408/521,520,776,067.60
  6. Step 6: Final answer
    x = 569,044,926,955.80

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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.