Home / 7,128,002.40-10,692,003.60-2,079,312.90

Finding the Fourth Proportional to 7,128,002.40, 10,692,003.60 and 2,079,312.90

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Solution

The fourth proportional to 7,128,002.40, 10,692,003.60 and 2,079,312.90 is: 3,118,969.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,002.40 : 10,692,003.60 = 2,079,312.90 : x
  2. Step 2: Convert to fraction form
    7,128,002.40/10,692,003.60 = 2,079,312.90/x
  3. Step 3: Cross multiply
    7,128,002.40x = 10,692,003.60 × 2,079,312.90
  4. Step 4: Simplify right side
    7,128,002.40x = 22,232,021,012,326.44
  5. Step 5: Solve for x
    x = 22,232,021,012,326.44/7,128,002.40
  6. Step 6: Final answer
    x = 3,118,969.35

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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.