Home / 8,990,018.40-13,485,027.60-8,934,031.20

Finding the Fourth Proportional to 8,990,018.40, 13,485,027.60 and 8,934,031.20

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Solution

The fourth proportional to 8,990,018.40, 13,485,027.60 and 8,934,031.20 is: 13,401,046.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990,018.40 : 13,485,027.60 = 8,934,031.20 : x
  2. Step 2: Convert to fraction form
    8,990,018.40/13,485,027.60 = 8,934,031.20/x
  3. Step 3: Cross multiply
    8,990,018.40x = 13,485,027.60 × 8,934,031.20
  4. Step 4: Simplify right side
    8,990,018.40x = 120,475,657,311,261.11
  5. Step 5: Solve for x
    x = 120,475,657,311,261.11/8,990,018.40
  6. Step 6: Final answer
    x = 13,401,046.80

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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.