Home / 255,318,479.76-382,427,630.82-172,985,628

Finding the Fourth Proportional to 255,318,479.76, 382,427,630.82 and 172,985,628

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Solution

The fourth proportional to 255,318,479.76, 382,427,630.82 and 172,985,628 is: 259,105,740.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,318,479.76 : 382,427,630.82 = 172,985,628 : x
  2. Step 2: Convert to fraction form
    255,318,479.76/382,427,630.82 = 172,985,628/x
  3. Step 3: Cross multiply
    255,318,479.76x = 382,427,630.82 × 172,985,628
  4. Step 4: Simplify right side
    255,318,479.76x = 66,154,483,881,949,856
  5. Step 5: Solve for x
    x = 66,154,483,881,949,856/255,318,479.76
  6. Step 6: Final answer
    x = 259,105,740.97

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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.