Home / 355,007,114.40-489,900,420.22-198,375,508.47

Finding the Fourth Proportional to 355,007,114.40, 489,900,420.22 and 198,375,508.47

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Solution

The fourth proportional to 355,007,114.40, 489,900,420.22 and 198,375,508.47 is: 273,752,950.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,007,114.40 : 489,900,420.22 = 198,375,508.47 : x
  2. Step 2: Convert to fraction form
    355,007,114.40/489,900,420.22 = 198,375,508.47/x
  3. Step 3: Cross multiply
    355,007,114.40x = 489,900,420.22 × 198,375,508.47
  4. Step 4: Simplify right side
    355,007,114.40x = 97,184,244,959,817,280
  5. Step 5: Solve for x
    x = 97,184,244,959,817,280/355,007,114.40
  6. Step 6: Final answer
    x = 273,752,950.34

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1.5x scale

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.