Home / 21,297,921.60-31,925,109.60-10,498,612.80

Finding the Fourth Proportional to 21,297,921.60, 31,925,109.60 and 10,498,612.80

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Solution

The fourth proportional to 21,297,921.60, 31,925,109.60 and 10,498,612.80 is: 15,737,186.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297,921.60 : 31,925,109.60 = 10,498,612.80 : x
  2. Step 2: Convert to fraction form
    21,297,921.60/31,925,109.60 = 10,498,612.80/x
  3. Step 3: Cross multiply
    21,297,921.60x = 31,925,109.60 × 10,498,612.80
  4. Step 4: Simplify right side
    21,297,921.60x = 335,169,364,287,962.94
  5. Step 5: Solve for x
    x = 335,169,364,287,962.94/21,297,921.60
  6. Step 6: Final answer
    x = 15,737,186.50

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1.5x scale

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.