Home / 171,387,405.18-257,000,065.28-66,391,923.10

Finding the Fourth Proportional to 171,387,405.18, 257,000,065.28 and 66,391,923.10

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Solution

The fourth proportional to 171,387,405.18, 257,000,065.28 and 66,391,923.10 is: 99,556,490.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,387,405.18 : 257,000,065.28 = 66,391,923.10 : x
  2. Step 2: Convert to fraction form
    171,387,405.18/257,000,065.28 = 66,391,923.10/x
  3. Step 3: Cross multiply
    171,387,405.18x = 257,000,065.28 × 66,391,923.10
  4. Step 4: Simplify right side
    171,387,405.18x = 17,062,728,570,764,740
  5. Step 5: Solve for x
    x = 17,062,728,570,764,740/171,387,405.18
  6. Step 6: Final answer
    x = 99,556,490.47

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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.