Home / 403,708,569.42-557,118,069.86-218,069,667.12

Finding the Fourth Proportional to 403,708,569.42, 557,118,069.86 and 218,069,667.12

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Solution

The fourth proportional to 403,708,569.42, 557,118,069.86 and 218,069,667.12 is: 300,936,272.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,708,569.42 : 557,118,069.86 = 218,069,667.12 : x
  2. Step 2: Convert to fraction form
    403,708,569.42/557,118,069.86 = 218,069,667.12/x
  3. Step 3: Cross multiply
    403,708,569.42x = 557,118,069.86 × 218,069,667.12
  4. Step 4: Simplify right side
    403,708,569.42x = 121,490,552,040,907,104
  5. Step 5: Solve for x
    x = 121,490,552,040,907,104/403,708,569.42
  6. Step 6: Final answer
    x = 300,936,272.46

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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.