Home / 28,393,290.40-42,589,935.60-9,224,672.80

Finding the Fourth Proportional to 28,393,290.40, 42,589,935.60 and 9,224,672.80

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Solution

The fourth proportional to 28,393,290.40, 42,589,935.60 and 9,224,672.80 is: 13,837,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,393,290.40 : 42,589,935.60 = 9,224,672.80 : x
  2. Step 2: Convert to fraction form
    28,393,290.40/42,589,935.60 = 9,224,672.80/x
  3. Step 3: Cross multiply
    28,393,290.40x = 42,589,935.60 × 9,224,672.80
  4. Step 4: Simplify right side
    28,393,290.40x = 392,878,220,483,071.75
  5. Step 5: Solve for x
    x = 392,878,220,483,071.75/28,393,290.40
  6. Step 6: Final answer
    x = 13,837,009.20

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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.