Home / 8,492,031.70-12,738,047.55-6,600,130.90

Finding the Fourth Proportional to 8,492,031.70, 12,738,047.55 and 6,600,130.90

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Solution

The fourth proportional to 8,492,031.70, 12,738,047.55 and 6,600,130.90 is: 9,900,196.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,492,031.70 : 12,738,047.55 = 6,600,130.90 : x
  2. Step 2: Convert to fraction form
    8,492,031.70/12,738,047.55 = 6,600,130.90/x
  3. Step 3: Cross multiply
    8,492,031.70x = 12,738,047.55 × 6,600,130.90
  4. Step 4: Simplify right side
    8,492,031.70x = 84,072,781,240,424.30
  5. Step 5: Solve for x
    x = 84,072,781,240,424.30/8,492,031.70
  6. Step 6: Final answer
    x = 9,900,196.35

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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.