Home / 403,708,619.04-557,118,138.41-218,069,716.74

Finding the Fourth Proportional to 403,708,619.04, 557,118,138.41 and 218,069,716.74

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Solution

The fourth proportional to 403,708,619.04, 557,118,138.41 and 218,069,716.74 is: 300,936,340.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,708,619.04 : 557,118,138.41 = 218,069,716.74 : x
  2. Step 2: Convert to fraction form
    403,708,619.04/557,118,138.41 = 218,069,716.74/x
  3. Step 3: Cross multiply
    403,708,619.04x = 557,118,138.41 × 218,069,716.74
  4. Step 4: Simplify right side
    403,708,619.04x = 121,490,594,633,784,816
  5. Step 5: Solve for x
    x = 121,490,594,633,784,816/403,708,619.04
  6. Step 6: Final answer
    x = 300,936,340.97

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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.