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Finding the Fourth Proportional to 328,966,793.60, 493,450,190.40 and 264,396,712.10

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Solution

The fourth proportional to 328,966,793.60, 493,450,190.40 and 264,396,712.10 is: 396,595,068.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,966,793.60 : 493,450,190.40 = 264,396,712.10 : x
  2. Step 2: Convert to fraction form
    328,966,793.60/493,450,190.40 = 264,396,712.10/x
  3. Step 3: Cross multiply
    328,966,793.60x = 493,450,190.40 × 264,396,712.10
  4. Step 4: Simplify right side
    328,966,793.60x = 130,466,607,926,878,976
  5. Step 5: Solve for x
    x = 130,466,607,926,878,976/328,966,793.60
  6. Step 6: Final answer
    x = 396,595,068.15

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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.