Home / 403,708,565.16-557,118,063.99-218,069,662.86

Finding the Fourth Proportional to 403,708,565.16, 557,118,063.99 and 218,069,662.86

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Solution

The fourth proportional to 403,708,565.16, 557,118,063.99 and 218,069,662.86 is: 300,936,266.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,708,565.16 : 557,118,063.99 = 218,069,662.86 : x
  2. Step 2: Convert to fraction form
    403,708,565.16/557,118,063.99 = 218,069,662.86/x
  3. Step 3: Cross multiply
    403,708,565.16x = 557,118,063.99 × 218,069,662.86
  4. Step 4: Simplify right side
    403,708,565.16x = 121,490,548,387,515,216
  5. Step 5: Solve for x
    x = 121,490,548,387,515,216/403,708,565.16
  6. Step 6: Final answer
    x = 300,936,266.58

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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.