Home / 862,676,621.16-1,190,547,087.93-475,992,161.21

Finding the Fourth Proportional to 862,676,621.16, 1,190,547,087.93 and 475,992,161.21

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Solution

The fourth proportional to 862,676,621.16, 1,190,547,087.93 and 475,992,161.21 is: 656,898,619.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,676,621.16 : 1,190,547,087.93 = 475,992,161.21 : x
  2. Step 2: Convert to fraction form
    862,676,621.16/1,190,547,087.93 = 475,992,161.21/x
  3. Step 3: Cross multiply
    862,676,621.16x = 1,190,547,087.93 × 475,992,161.21
  4. Step 4: Simplify right side
    862,676,621.16x = 566,691,081,400,119,872
  5. Step 5: Solve for x
    x = 566,691,081,400,119,872/862,676,621.16
  6. Step 6: Final answer
    x = 656,898,619.37

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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.