Home / 15,739,783.80-21,720,328.16-8,770,101.18

Finding the Fourth Proportional to 15,739,783.80, 21,720,328.16 and 8,770,101.18

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Solution

The fourth proportional to 15,739,783.80, 21,720,328.16 and 8,770,101.18 is: 12,102,420.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,739,783.80 : 21,720,328.16 = 8,770,101.18 : x
  2. Step 2: Convert to fraction form
    15,739,783.80/21,720,328.16 = 8,770,101.18/x
  3. Step 3: Cross multiply
    15,739,783.80x = 21,720,328.16 × 8,770,101.18
  4. Step 4: Simplify right side
    15,739,783.80x = 190,489,475,582,152.72
  5. Step 5: Solve for x
    x = 190,489,475,582,152.72/15,739,783.80
  6. Step 6: Final answer
    x = 12,102,420.08

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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.