Home / 1,207,714,780.32-1,811,123,619.44-420,566,293.05

Finding the Fourth Proportional to 1,207,714,780.32, 1,811,123,619.44 and 420,566,293.05

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Solution

The fourth proportional to 1,207,714,780.32, 1,811,123,619.44 and 420,566,293.05 is: 630,693,239.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,714,780.32 : 1,811,123,619.44 = 420,566,293.05 : x
  2. Step 2: Convert to fraction form
    1,207,714,780.32/1,811,123,619.44 = 420,566,293.05/x
  3. Step 3: Cross multiply
    1,207,714,780.32x = 1,811,123,619.44 × 420,566,293.05
  4. Step 4: Simplify right side
    1,207,714,780.32x = 761,697,546,881,076,864
  5. Step 5: Solve for x
    x = 761,697,546,881,076,864/1,207,714,780.32
  6. Step 6: Final answer
    x = 630,693,239.24

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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.