Home / 171,678,842.40-257,563,882.80-74,592,890.40

Finding the Fourth Proportional to 171,678,842.40, 257,563,882.80 and 74,592,890.40

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Solution

The fourth proportional to 171,678,842.40, 257,563,882.80 and 74,592,890.40 is: 111,909,156.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,678,842.40 : 257,563,882.80 = 74,592,890.40 : x
  2. Step 2: Convert to fraction form
    171,678,842.40/257,563,882.80 = 74,592,890.40/x
  3. Step 3: Cross multiply
    171,678,842.40x = 257,563,882.80 × 74,592,890.40
  4. Step 4: Simplify right side
    171,678,842.40x = 19,212,434,480,698,848
  5. Step 5: Solve for x
    x = 19,212,434,480,698,848/171,678,842.40
  6. Step 6: Final answer
    x = 111,909,156.73

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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.