Home / 8,761,878.40-13,141,588.80-2,778,851.20

Finding the Fourth Proportional to 8,761,878.40, 13,141,588.80 and 2,778,851.20

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Solution

The fourth proportional to 8,761,878.40, 13,141,588.80 and 2,778,851.20 is: 4,167,887.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761,878.40 : 13,141,588.80 = 2,778,851.20 : x
  2. Step 2: Convert to fraction form
    8,761,878.40/13,141,588.80 = 2,778,851.20/x
  3. Step 3: Cross multiply
    8,761,878.40x = 13,141,588.80 × 2,778,851.20
  4. Step 4: Simplify right side
    8,761,878.40x = 36,518,519,806,786.56
  5. Step 5: Solve for x
    x = 36,518,519,806,786.56/8,761,878.40
  6. Step 6: Final answer
    x = 4,167,887.08

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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.