Home / 671,436,097.20-1,007,154,145.80-398,666,458.80

Finding the Fourth Proportional to 671,436,097.20, 1,007,154,145.80 and 398,666,458.80

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Solution

The fourth proportional to 671,436,097.20, 1,007,154,145.80 and 398,666,458.80 is: 597,999,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,436,097.20 : 1,007,154,145.80 = 398,666,458.80 : x
  2. Step 2: Convert to fraction form
    671,436,097.20/1,007,154,145.80 = 398,666,458.80/x
  3. Step 3: Cross multiply
    671,436,097.20x = 1,007,154,145.80 × 398,666,458.80
  4. Step 4: Simplify right side
    671,436,097.20x = 401,518,576,771,824,896
  5. Step 5: Solve for x
    x = 401,518,576,771,824,896/671,436,097.20
  6. Step 6: Final answer
    x = 597,999,688.20

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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.