Home / 1,165,347,929.16-1,608,161,119.38-636,700,538.16

Finding the Fourth Proportional to 1,165,347,929.16, 1,608,161,119.38 and 636,700,538.16

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Solution

The fourth proportional to 1,165,347,929.16, 1,608,161,119.38 and 636,700,538.16 is: 878,636,349.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,347,929.16 : 1,608,161,119.38 = 636,700,538.16 : x
  2. Step 2: Convert to fraction form
    1,165,347,929.16/1,608,161,119.38 = 636,700,538.16/x
  3. Step 3: Cross multiply
    1,165,347,929.16x = 1,608,161,119.38 × 636,700,538.16
  4. Step 4: Simplify right side
    1,165,347,929.16x = 1,023,917,050,157,234,048
  5. Step 5: Solve for x
    x = 1,023,917,050,157,234,048/1,165,347,929.16
  6. Step 6: Final answer
    x = 878,636,349.31

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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.