Home / 1,200,446,018.68-1,656,579,926.44-664,621,565.08

Finding the Fourth Proportional to 1,200,446,018.68, 1,656,579,926.44 and 664,621,565.08

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Solution

The fourth proportional to 1,200,446,018.68, 1,656,579,926.44 and 664,621,565.08 is: 917,158,061.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,446,018.68 : 1,656,579,926.44 = 664,621,565.08 : x
  2. Step 2: Convert to fraction form
    1,200,446,018.68/1,656,579,926.44 = 664,621,565.08/x
  3. Step 3: Cross multiply
    1,200,446,018.68x = 1,656,579,926.44 × 664,621,565.08
  4. Step 4: Simplify right side
    1,200,446,018.68x = 1,100,998,743,390,664,192
  5. Step 5: Solve for x
    x = 1,100,998,743,390,664,192/1,200,446,018.68
  6. Step 6: Final answer
    x = 917,158,061.47

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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.