Home / 403,708,568.91-557,118,069.17-218,069,666.61

Finding the Fourth Proportional to 403,708,568.91, 557,118,069.17 and 218,069,666.61

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Solution

The fourth proportional to 403,708,568.91, 557,118,069.17 and 218,069,666.61 is: 300,936,271.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,708,568.91 : 557,118,069.17 = 218,069,666.61 : x
  2. Step 2: Convert to fraction form
    403,708,568.91/557,118,069.17 = 218,069,666.61/x
  3. Step 3: Cross multiply
    403,708,568.91x = 557,118,069.17 × 218,069,666.61
  4. Step 4: Simplify right side
    403,708,568.91x = 121,490,551,605,218,464
  5. Step 5: Solve for x
    x = 121,490,551,605,218,464/403,708,568.91
  6. Step 6: Final answer
    x = 300,936,271.76

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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.