Home / 331,553,872.40-497,778,706.20-210,621,520.40

Finding the Fourth Proportional to 331,553,872.40, 497,778,706.20 and 210,621,520.40

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Solution

The fourth proportional to 331,553,872.40, 497,778,706.20 and 210,621,520.40 is: 316,216,810.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,553,872.40 : 497,778,706.20 = 210,621,520.40 : x
  2. Step 2: Convert to fraction form
    331,553,872.40/497,778,706.20 = 210,621,520.40/x
  3. Step 3: Cross multiply
    331,553,872.40x = 497,778,706.20 × 210,621,520.40
  4. Step 4: Simplify right side
    331,553,872.40x = 104,842,907,922,588,912
  5. Step 5: Solve for x
    x = 104,842,907,922,588,912/331,553,872.40
  6. Step 6: Final answer
    x = 316,216,810.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.