Home / 215,607,612.20-323,411,418.30-79,264,783.40

Finding the Fourth Proportional to 215,607,612.20, 323,411,418.30 and 79,264,783.40

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Solution

The fourth proportional to 215,607,612.20, 323,411,418.30 and 79,264,783.40 is: 118,897,175.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,607,612.20 : 323,411,418.30 = 79,264,783.40 : x
  2. Step 2: Convert to fraction form
    215,607,612.20/323,411,418.30 = 79,264,783.40/x
  3. Step 3: Cross multiply
    215,607,612.20x = 323,411,418.30 × 79,264,783.40
  4. Step 4: Simplify right side
    215,607,612.20x = 25,635,136,020,636,300
  5. Step 5: Solve for x
    x = 25,635,136,020,636,300/215,607,612.20
  6. Step 6: Final answer
    x = 118,897,175.10

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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.