Home / 813,386,878.59-1,122,395,459.15-456,169,157.27

Finding the Fourth Proportional to 813,386,878.59, 1,122,395,459.15 and 456,169,157.27

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Solution

The fourth proportional to 813,386,878.59, 1,122,395,459.15 and 456,169,157.27 is: 629,469,449.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,386,878.59 : 1,122,395,459.15 = 456,169,157.27 : x
  2. Step 2: Convert to fraction form
    813,386,878.59/1,122,395,459.15 = 456,169,157.27/x
  3. Step 3: Cross multiply
    813,386,878.59x = 1,122,395,459.15 × 456,169,157.27
  4. Step 4: Simplify right side
    813,386,878.59x = 512,002,190,721,313,088
  5. Step 5: Solve for x
    x = 512,002,190,721,313,088/813,386,878.59
  6. Step 6: Final answer
    x = 629,469,449.53

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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.