Home / 279,355,340.30-385,376,858.80-217,049,284.94

Finding the Fourth Proportional to 279,355,340.30, 385,376,858.80 and 217,049,284.94

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Solution

The fourth proportional to 279,355,340.30, 385,376,858.80 and 217,049,284.94 is: 299,424,280.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,355,340.30 : 385,376,858.80 = 217,049,284.94 : x
  2. Step 2: Convert to fraction form
    279,355,340.30/385,376,858.80 = 217,049,284.94/x
  3. Step 3: Cross multiply
    279,355,340.30x = 385,376,858.80 × 217,049,284.94
  4. Step 4: Simplify right side
    279,355,340.30x = 83,645,771,632,493,840
  5. Step 5: Solve for x
    x = 83,645,771,632,493,840/279,355,340.30
  6. Step 6: Final answer
    x = 299,424,280.00

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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.