Home / 387,920,662.35-535,260,027.98-229,176,630.69

Finding the Fourth Proportional to 387,920,662.35, 535,260,027.98 and 229,176,630.69

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Solution

The fourth proportional to 387,920,662.35, 535,260,027.98 and 229,176,630.69 is: 316,222,108.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,920,662.35 : 535,260,027.98 = 229,176,630.69 : x
  2. Step 2: Convert to fraction form
    387,920,662.35/535,260,027.98 = 229,176,630.69/x
  3. Step 3: Cross multiply
    387,920,662.35x = 535,260,027.98 × 229,176,630.69
  4. Step 4: Simplify right side
    387,920,662.35x = 122,669,089,754,345,648
  5. Step 5: Solve for x
    x = 122,669,089,754,345,648/387,920,662.35
  6. Step 6: Final answer
    x = 316,222,108.44

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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.