Home / 354,436,730.21-489,149,730.56-195,697,456.34

Finding the Fourth Proportional to 354,436,730.21, 489,149,730.56 and 195,697,456.34

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Solution

The fourth proportional to 354,436,730.21, 489,149,730.56 and 195,697,456.34 is: 270,077,421.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,436,730.21 : 489,149,730.56 = 195,697,456.34 : x
  2. Step 2: Convert to fraction form
    354,436,730.21/489,149,730.56 = 195,697,456.34/x
  3. Step 3: Cross multiply
    354,436,730.21x = 489,149,730.56 × 195,697,456.34
  4. Step 4: Simplify right side
    354,436,730.21x = 95,725,358,038,031,856
  5. Step 5: Solve for x
    x = 95,725,358,038,031,856/354,436,730.21
  6. Step 6: Final answer
    x = 270,077,421.10

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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.