Home / 486,238,617.96-728,949,215.59-393,893,350.78

Finding the Fourth Proportional to 486,238,617.96, 728,949,215.59 and 393,893,350.78

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Solution

The fourth proportional to 486,238,617.96, 728,949,215.59 and 393,893,350.78 is: 590,508,936.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,238,617.96 : 728,949,215.59 = 393,893,350.78 : x
  2. Step 2: Convert to fraction form
    486,238,617.96/728,949,215.59 = 393,893,350.78/x
  3. Step 3: Cross multiply
    486,238,617.96x = 728,949,215.59 × 393,893,350.78
  4. Step 4: Simplify right side
    486,238,617.96x = 287,128,249,075,691,264
  5. Step 5: Solve for x
    x = 287,128,249,075,691,264/486,238,617.96
  6. Step 6: Final answer
    x = 590,508,936.30

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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.