Home / 272,736,042-409,164,514.08-78,632,312.44

Finding the Fourth Proportional to 272,736,042, 409,164,514.08 and 78,632,312.44

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Solution

The fourth proportional to 272,736,042, 409,164,514.08 and 78,632,312.44 is: 117,965,897.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,736,042 : 409,164,514.08 = 78,632,312.44 : x
  2. Step 2: Convert to fraction form
    272,736,042/409,164,514.08 = 78,632,312.44/x
  3. Step 3: Cross multiply
    272,736,042x = 409,164,514.08 × 78,632,312.44
  4. Step 4: Simplify right side
    272,736,042x = 32,173,551,910,499,336
  5. Step 5: Solve for x
    x = 32,173,551,910,499,336/272,736,042
  6. Step 6: Final answer
    x = 117,965,897.26

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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.