Home / 215,796,368.40-323,694,552.60-79,464,037.20

Finding the Fourth Proportional to 215,796,368.40, 323,694,552.60 and 79,464,037.20

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Solution

The fourth proportional to 215,796,368.40, 323,694,552.60 and 79,464,037.20 is: 119,196,055.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,796,368.40 : 323,694,552.60 = 79,464,037.20 : x
  2. Step 2: Convert to fraction form
    215,796,368.40/323,694,552.60 = 79,464,037.20/x
  3. Step 3: Cross multiply
    215,796,368.40x = 323,694,552.60 × 79,464,037.20
  4. Step 4: Simplify right side
    215,796,368.40x = 25,722,075,969,243,760
  5. Step 5: Solve for x
    x = 25,722,075,969,243,760/215,796,368.40
  6. Step 6: Final answer
    x = 119,196,055.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.