Home / 403,704,900.59-557,112,986.99-218,065,918.10

Finding the Fourth Proportional to 403,704,900.59, 557,112,986.99 and 218,065,918.10

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Solution

The fourth proportional to 403,704,900.59, 557,112,986.99 and 218,065,918.10 is: 300,931,088.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,704,900.59 : 557,112,986.99 = 218,065,918.10 : x
  2. Step 2: Convert to fraction form
    403,704,900.59/557,112,986.99 = 218,065,918.10/x
  3. Step 3: Cross multiply
    403,704,900.59x = 557,112,986.99 × 218,065,918.10
  4. Step 4: Simplify right side
    403,704,900.59x = 121,487,354,993,407,712
  5. Step 5: Solve for x
    x = 121,487,354,993,407,712/403,704,900.59
  6. Step 6: Final answer
    x = 300,931,088.07

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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.