Home / 521,557,056,003.80-782,335,584,005.70-417,071,503,875.80

Finding the Fourth Proportional to 521,557,056,003.80, 782,335,584,005.70 and 417,071,503,875.80

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Solution

The fourth proportional to 521,557,056,003.80, 782,335,584,005.70 and 417,071,503,875.80 is: 625,607,255,813.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,557,056,003.80 : 782,335,584,005.70 = 417,071,503,875.80 : x
  2. Step 2: Convert to fraction form
    521,557,056,003.80/782,335,584,005.70 = 417,071,503,875.80/x
  3. Step 3: Cross multiply
    521,557,056,003.80x = 782,335,584,005.70 × 417,071,503,875.80
  4. Step 4: Simplify right side
    521,557,056,003.80x = 326,289,878,556,809,552,199,680
  5. Step 5: Solve for x
    x = 326,289,878,556,809,552,199,680/521,557,056,003.80
  6. Step 6: Final answer
    x = 625,607,255,813.70

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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.