Home / 706,752,777.60-1,060,129,166.40-400,642,761.60

Finding the Fourth Proportional to 706,752,777.60, 1,060,129,166.40 and 400,642,761.60

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Solution

The fourth proportional to 706,752,777.60, 1,060,129,166.40 and 400,642,761.60 is: 600,964,142.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,752,777.60 : 1,060,129,166.40 = 400,642,761.60 : x
  2. Step 2: Convert to fraction form
    706,752,777.60/1,060,129,166.40 = 400,642,761.60/x
  3. Step 3: Cross multiply
    706,752,777.60x = 1,060,129,166.40 × 400,642,761.60
  4. Step 4: Simplify right side
    706,752,777.60x = 424,733,076,879,201,920
  5. Step 5: Solve for x
    x = 424,733,076,879,201,920/706,752,777.60
  6. Step 6: Final answer
    x = 600,964,142.40

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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.