Home / 403,704,899.59-557,112,985.61-218,065,917.10

Finding the Fourth Proportional to 403,704,899.59, 557,112,985.61 and 218,065,917.10

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Solution

The fourth proportional to 403,704,899.59, 557,112,985.61 and 218,065,917.10 is: 300,931,086.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,704,899.59 : 557,112,985.61 = 218,065,917.10 : x
  2. Step 2: Convert to fraction form
    403,704,899.59/557,112,985.61 = 218,065,917.10/x
  3. Step 3: Cross multiply
    403,704,899.59x = 557,112,985.61 × 218,065,917.10
  4. Step 4: Simplify right side
    403,704,899.59x = 121,487,354,135,363,760
  5. Step 5: Solve for x
    x = 121,487,354,135,363,760/403,704,899.59
  6. Step 6: Final answer
    x = 300,931,086.69

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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.