Home / 918,336,333.68-1,377,509,477.16-272,109,676.40

Finding the Fourth Proportional to 918,336,333.68, 1,377,509,477.16 and 272,109,676.40

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Solution

The fourth proportional to 918,336,333.68, 1,377,509,477.16 and 272,109,676.40 is: 408,165,989.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,336,333.68 : 1,377,509,477.16 = 272,109,676.40 : x
  2. Step 2: Convert to fraction form
    918,336,333.68/1,377,509,477.16 = 272,109,676.40/x
  3. Step 3: Cross multiply
    918,336,333.68x = 1,377,509,477.16 × 272,109,676.40
  4. Step 4: Simplify right side
    918,336,333.68x = 374,833,658,067,940,800
  5. Step 5: Solve for x
    x = 374,833,658,067,940,800/918,336,333.68
  6. Step 6: Final answer
    x = 408,165,989.21

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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.