Home / 403,704,906.09-557,112,994.59-218,065,923.60

Finding the Fourth Proportional to 403,704,906.09, 557,112,994.59 and 218,065,923.60

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Solution

The fourth proportional to 403,704,906.09, 557,112,994.59 and 218,065,923.60 is: 300,931,095.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,704,906.09 : 557,112,994.59 = 218,065,923.60 : x
  2. Step 2: Convert to fraction form
    403,704,906.09/557,112,994.59 = 218,065,923.60/x
  3. Step 3: Cross multiply
    403,704,906.09x = 557,112,994.59 × 218,065,923.60
  4. Step 4: Simplify right side
    403,704,906.09x = 121,487,359,714,830,160
  5. Step 5: Solve for x
    x = 121,487,359,714,830,160/403,704,906.09
  6. Step 6: Final answer
    x = 300,931,095.66

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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.