Home / 653,292,046.80-979,938,070.20-422,008,923.60

Finding the Fourth Proportional to 653,292,046.80, 979,938,070.20 and 422,008,923.60

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Solution

The fourth proportional to 653,292,046.80, 979,938,070.20 and 422,008,923.60 is: 633,013,385.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,292,046.80 : 979,938,070.20 = 422,008,923.60 : x
  2. Step 2: Convert to fraction form
    653,292,046.80/979,938,070.20 = 422,008,923.60/x
  3. Step 3: Cross multiply
    653,292,046.80x = 979,938,070.20 × 422,008,923.60
  4. Step 4: Simplify right side
    653,292,046.80x = 413,542,610,199,763,264
  5. Step 5: Solve for x
    x = 413,542,610,199,763,264/653,292,046.80
  6. Step 6: Final answer
    x = 633,013,385.40

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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.