Home / 556,352,213.42-767,727,648.78-308,814,081.50

Finding the Fourth Proportional to 556,352,213.42, 767,727,648.78 and 308,814,081.50

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Solution

The fourth proportional to 556,352,213.42, 767,727,648.78 and 308,814,081.50 is: 426,142,114.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,352,213.42 : 767,727,648.78 = 308,814,081.50 : x
  2. Step 2: Convert to fraction form
    556,352,213.42/767,727,648.78 = 308,814,081.50/x
  3. Step 3: Cross multiply
    556,352,213.42x = 767,727,648.78 × 308,814,081.50
  4. Step 4: Simplify right side
    556,352,213.42x = 237,085,108,700,150,272
  5. Step 5: Solve for x
    x = 237,085,108,700,150,272/556,352,213.42
  6. Step 6: Final answer
    x = 426,142,114.62

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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.