Home / 7,490,995.20-11,236,492.80-7,242,989.40

Finding the Fourth Proportional to 7,490,995.20, 11,236,492.80 and 7,242,989.40

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Solution

The fourth proportional to 7,490,995.20, 11,236,492.80 and 7,242,989.40 is: 10,864,484.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490,995.20 : 11,236,492.80 = 7,242,989.40 : x
  2. Step 2: Convert to fraction form
    7,490,995.20/11,236,492.80 = 7,242,989.40/x
  3. Step 3: Cross multiply
    7,490,995.20x = 11,236,492.80 × 7,242,989.40
  4. Step 4: Simplify right side
    7,490,995.20x = 81,385,798,243,576.33
  5. Step 5: Solve for x
    x = 81,385,798,243,576.33/7,490,995.20
  6. Step 6: Final answer
    x = 10,864,484.10

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1.5x scale

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.