Home / 8,520,885.40-12,781,328.10-6,617,320.60

Finding the Fourth Proportional to 8,520,885.40, 12,781,328.10 and 6,617,320.60

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Solution

The fourth proportional to 8,520,885.40, 12,781,328.10 and 6,617,320.60 is: 9,925,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520,885.40 : 12,781,328.10 = 6,617,320.60 : x
  2. Step 2: Convert to fraction form
    8,520,885.40/12,781,328.10 = 6,617,320.60/x
  3. Step 3: Cross multiply
    8,520,885.40x = 12,781,328.10 × 6,617,320.60
  4. Step 4: Simplify right side
    8,520,885.40x = 84,578,145,731,488.86
  5. Step 5: Solve for x
    x = 84,578,145,731,488.86/8,520,885.40
  6. Step 6: Final answer
    x = 9,925,980.90

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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.