Home / 163,715,967.30-245,602,321.20-66,724,441.86

Finding the Fourth Proportional to 163,715,967.30, 245,602,321.20 and 66,724,441.86

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Solution

The fourth proportional to 163,715,967.30, 245,602,321.20 and 66,724,441.86 is: 100,098,225.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,715,967.30 : 245,602,321.20 = 66,724,441.86 : x
  2. Step 2: Convert to fraction form
    163,715,967.30/245,602,321.20 = 66,724,441.86/x
  3. Step 3: Cross multiply
    163,715,967.30x = 245,602,321.20 × 66,724,441.86
  4. Step 4: Simplify right side
    163,715,967.30x = 16,387,677,801,590,444
  5. Step 5: Solve for x
    x = 16,387,677,801,590,444/163,715,967.30
  6. Step 6: Final answer
    x = 100,098,225.43

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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.