Home / 1,165,347,921.16-1,608,161,108.34-636,700,530.16

Finding the Fourth Proportional to 1,165,347,921.16, 1,608,161,108.34 and 636,700,530.16

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Solution

The fourth proportional to 1,165,347,921.16, 1,608,161,108.34 and 636,700,530.16 is: 878,636,338.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,347,921.16 : 1,608,161,108.34 = 636,700,530.16 : x
  2. Step 2: Convert to fraction form
    1,165,347,921.16/1,608,161,108.34 = 636,700,530.16/x
  3. Step 3: Cross multiply
    1,165,347,921.16x = 1,608,161,108.34 × 636,700,530.16
  4. Step 4: Simplify right side
    1,165,347,921.16x = 1,023,917,030,262,771,072
  5. Step 5: Solve for x
    x = 1,023,917,030,262,771,072/1,165,347,921.16
  6. Step 6: Final answer
    x = 878,636,338.27

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1.5x scale

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.