Home / 1,207,714,779.56-1,811,123,618.32-420,566,292.30

Finding the Fourth Proportional to 1,207,714,779.56, 1,811,123,618.32 and 420,566,292.30

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Solution

The fourth proportional to 1,207,714,779.56, 1,811,123,618.32 and 420,566,292.30 is: 630,693,238.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,714,779.56 : 1,811,123,618.32 = 420,566,292.30 : x
  2. Step 2: Convert to fraction form
    1,207,714,779.56/1,811,123,618.32 = 420,566,292.30/x
  3. Step 3: Cross multiply
    1,207,714,779.56x = 1,811,123,618.32 × 420,566,292.30
  4. Step 4: Simplify right side
    1,207,714,779.56x = 761,697,545,052,751,360
  5. Step 5: Solve for x
    x = 761,697,545,052,751,360/1,207,714,779.56
  6. Step 6: Final answer
    x = 630,693,238.12

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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.