Home / 668,577,220.02-1,002,338,384.76-422,414,994.60

Finding the Fourth Proportional to 668,577,220.02, 1,002,338,384.76 and 422,414,994.60

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Solution

The fourth proportional to 668,577,220.02, 1,002,338,384.76 and 422,414,994.60 is: 633,289,245.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,577,220.02 : 1,002,338,384.76 = 422,414,994.60 : x
  2. Step 2: Convert to fraction form
    668,577,220.02/1,002,338,384.76 = 422,414,994.60/x
  3. Step 3: Cross multiply
    668,577,220.02x = 1,002,338,384.76 × 422,414,994.60
  4. Step 4: Simplify right side
    668,577,220.02x = 423,402,763,385,768,128
  5. Step 5: Solve for x
    x = 423,402,763,385,768,128/668,577,220.02
  6. Step 6: Final answer
    x = 633,289,245.74

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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.