Home / 10,338,993.20-14,271,714.96-8,128,088.48

Finding the Fourth Proportional to 10,338,993.20, 14,271,714.96 and 8,128,088.48

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Solution

The fourth proportional to 10,338,993.20, 14,271,714.96 and 8,128,088.48 is: 11,219,831.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,338,993.20 : 14,271,714.96 = 8,128,088.48 : x
  2. Step 2: Convert to fraction form
    10,338,993.20/14,271,714.96 = 8,128,088.48/x
  3. Step 3: Cross multiply
    10,338,993.20x = 14,271,714.96 × 8,128,088.48
  4. Step 4: Simplify right side
    10,338,993.20x = 116,001,761,956,219.67
  5. Step 5: Solve for x
    x = 116,001,761,956,219.67/10,338,993.20
  6. Step 6: Final answer
    x = 11,219,831.54

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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.