Home / 889,236,196.80-1,227,153,262.61-492,765,807.43

Finding the Fourth Proportional to 889,236,196.80, 1,227,153,262.61 and 492,765,807.43

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Solution

The fourth proportional to 889,236,196.80, 1,227,153,262.61 and 492,765,807.43 is: 680,020,865.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,236,196.80 : 1,227,153,262.61 = 492,765,807.43 : x
  2. Step 2: Convert to fraction form
    889,236,196.80/1,227,153,262.61 = 492,765,807.43/x
  3. Step 3: Cross multiply
    889,236,196.80x = 1,227,153,262.61 × 492,765,807.43
  4. Step 4: Simplify right side
    889,236,196.80x = 604,699,168,290,375,424
  5. Step 5: Solve for x
    x = 604,699,168,290,375,424/889,236,196.80
  6. Step 6: Final answer
    x = 680,020,865.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.