Home / 358,970,357.88-495,417,179.04-210,416,299.20

Finding the Fourth Proportional to 358,970,357.88, 495,417,179.04 and 210,416,299.20

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Solution

The fourth proportional to 358,970,357.88, 495,417,179.04 and 210,416,299.20 is: 290,396,817.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,970,357.88 : 495,417,179.04 = 210,416,299.20 : x
  2. Step 2: Convert to fraction form
    358,970,357.88/495,417,179.04 = 210,416,299.20/x
  3. Step 3: Cross multiply
    358,970,357.88x = 495,417,179.04 × 210,416,299.20
  4. Step 4: Simplify right side
    358,970,357.88x = 104,243,849,373,700,608
  5. Step 5: Solve for x
    x = 104,243,849,373,700,608/358,970,357.88
  6. Step 6: Final answer
    x = 290,396,817.13

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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.