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Finding the Fourth Proportional to 355,968,019.20, 499,788,499.20 and 355,968,019.20

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Solution

The fourth proportional to 355,968,019.20, 499,788,499.20 and 355,968,019.20 is: 499,788,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,968,019.20 : 499,788,499.20 = 355,968,019.20 : x
  2. Step 2: Convert to fraction form
    355,968,019.20/499,788,499.20 = 355,968,019.20/x
  3. Step 3: Cross multiply
    355,968,019.20x = 499,788,499.20 × 355,968,019.20
  4. Step 4: Simplify right side
    355,968,019.20x = 177,908,722,079,164,768
  5. Step 5: Solve for x
    x = 177,908,722,079,164,768/355,968,019.20
  6. Step 6: Final answer
    x = 499,788,499.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.