Home / 366,421,477.30-505,659,280.16-209,818,851.55

Finding the Fourth Proportional to 366,421,477.30, 505,659,280.16 and 209,818,851.55

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Solution

The fourth proportional to 366,421,477.30, 505,659,280.16 and 209,818,851.55 is: 289,548,664.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,421,477.30 : 505,659,280.16 = 209,818,851.55 : x
  2. Step 2: Convert to fraction form
    366,421,477.30/505,659,280.16 = 209,818,851.55/x
  3. Step 3: Cross multiply
    366,421,477.30x = 505,659,280.16 × 209,818,851.55
  4. Step 4: Simplify right side
    366,421,477.30x = 106,096,849,439,698,112
  5. Step 5: Solve for x
    x = 106,096,849,439,698,112/366,421,477.30
  6. Step 6: Final answer
    x = 289,548,664.62

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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.