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Finding the Fourth Proportional to 897,059,619.80, 1,345,589,429.70 and 800,313,738.20

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Solution

The fourth proportional to 897,059,619.80, 1,345,589,429.70 and 800,313,738.20 is: 1,200,470,607.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,059,619.80 : 1,345,589,429.70 = 800,313,738.20 : x
  2. Step 2: Convert to fraction form
    897,059,619.80/1,345,589,429.70 = 800,313,738.20/x
  3. Step 3: Cross multiply
    897,059,619.80x = 1,345,589,429.70 × 800,313,738.20
  4. Step 4: Simplify right side
    897,059,619.80x = 1,076,893,706,565,613,184
  5. Step 5: Solve for x
    x = 1,076,893,706,565,613,184/897,059,619.80
  6. Step 6: Final answer
    x = 1,200,470,607.30

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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.