Home / 358,912,145.52-495,464,237.64-210,212,739.36

Finding the Fourth Proportional to 358,912,145.52, 495,464,237.64 and 210,212,739.36

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Solution

The fourth proportional to 358,912,145.52, 495,464,237.64 and 210,212,739.36 is: 290,190,499.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,912,145.52 : 495,464,237.64 = 210,212,739.36 : x
  2. Step 2: Convert to fraction form
    358,912,145.52/495,464,237.64 = 210,212,739.36/x
  3. Step 3: Cross multiply
    358,912,145.52x = 495,464,237.64 × 210,212,739.36
  4. Step 4: Simplify right side
    358,912,145.52x = 104,152,894,649,218,432
  5. Step 5: Solve for x
    x = 104,152,894,649,218,432/358,912,145.52
  6. Step 6: Final answer
    x = 290,190,499.12

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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.