Home / 31,056,006.64-42,860,478.30-18,670,109.86

Finding the Fourth Proportional to 31,056,006.64, 42,860,478.30 and 18,670,109.86

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Solution

The fourth proportional to 31,056,006.64, 42,860,478.30 and 18,670,109.86 is: 25,766,668.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,056,006.64 : 42,860,478.30 = 18,670,109.86 : x
  2. Step 2: Convert to fraction form
    31,056,006.64/42,860,478.30 = 18,670,109.86/x
  3. Step 3: Cross multiply
    31,056,006.64x = 42,860,478.30 × 18,670,109.86
  4. Step 4: Simplify right side
    31,056,006.64x = 800,209,838,513,146
  5. Step 5: Solve for x
    x = 800,209,838,513,146/31,056,006.64
  6. Step 6: Final answer
    x = 25,766,668.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.