Home / 403,704,947.76-557,113,052.16-218,065,965

Finding the Fourth Proportional to 403,704,947.76, 557,113,052.16 and 218,065,965

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Solution

The fourth proportional to 403,704,947.76, 557,113,052.16 and 218,065,965 is: 300,931,152.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,704,947.76 : 557,113,052.16 = 218,065,965 : x
  2. Step 2: Convert to fraction form
    403,704,947.76/557,113,052.16 = 218,065,965/x
  3. Step 3: Cross multiply
    403,704,947.76x = 557,113,052.16 × 218,065,965
  4. Step 4: Simplify right side
    403,704,947.76x = 121,487,395,333,365,728
  5. Step 5: Solve for x
    x = 121,487,395,333,365,728/403,704,947.76
  6. Step 6: Final answer
    x = 300,931,152.83

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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.