Home / 765,411,739.29-1,147,184,864.37-396,743,441.22

Finding the Fourth Proportional to 765,411,739.29, 1,147,184,864.37 and 396,743,441.22

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Solution

The fourth proportional to 765,411,739.29, 1,147,184,864.37 and 396,743,441.22 is: 594,631,683.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,411,739.29 : 1,147,184,864.37 = 396,743,441.22 : x
  2. Step 2: Convert to fraction form
    765,411,739.29/1,147,184,864.37 = 396,743,441.22/x
  3. Step 3: Cross multiply
    765,411,739.29x = 1,147,184,864.37 × 396,743,441.22
  4. Step 4: Simplify right side
    765,411,739.29x = 455,138,070,805,652,736
  5. Step 5: Solve for x
    x = 455,138,070,805,652,736/765,411,739.29
  6. Step 6: Final answer
    x = 594,631,683.11

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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.