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Finding the Fourth Proportional to 298,955,102.40, 448,432,653.60 and 260,691,350.40

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Solution

The fourth proportional to 298,955,102.40, 448,432,653.60 and 260,691,350.40 is: 391,037,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,955,102.40 : 448,432,653.60 = 260,691,350.40 : x
  2. Step 2: Convert to fraction form
    298,955,102.40/448,432,653.60 = 260,691,350.40/x
  3. Step 3: Cross multiply
    298,955,102.40x = 448,432,653.60 × 260,691,350.40
  4. Step 4: Simplify right side
    298,955,102.40x = 116,902,514,030,439,424
  5. Step 5: Solve for x
    x = 116,902,514,030,439,424/298,955,102.40
  6. Step 6: Final answer
    x = 391,037,025.60

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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.