Home / 20,710,152.54-31,069,713.06-7,930,657.80

Finding the Fourth Proportional to 20,710,152.54, 31,069,713.06 and 7,930,657.80

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Solution

The fourth proportional to 20,710,152.54, 31,069,713.06 and 7,930,657.80 is: 11,897,703.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710,152.54 : 31,069,713.06 = 7,930,657.80 : x
  2. Step 2: Convert to fraction form
    20,710,152.54/31,069,713.06 = 7,930,657.80/x
  3. Step 3: Cross multiply
    20,710,152.54x = 31,069,713.06 × 7,930,657.80
  4. Step 4: Simplify right side
    20,710,152.54x = 246,403,262,223,050.84
  5. Step 5: Solve for x
    x = 246,403,262,223,050.84/20,710,152.54
  6. Step 6: Final answer
    x = 11,897,703.88

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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.