Home / 6,520,124.90-9,781,638.78-2,143,461.98

Finding the Fourth Proportional to 6,520,124.90, 9,781,638.78 and 2,143,461.98

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Solution

The fourth proportional to 6,520,124.90, 9,781,638.78 and 2,143,461.98 is: 3,215,670.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520,124.90 : 9,781,638.78 = 2,143,461.98 : x
  2. Step 2: Convert to fraction form
    6,520,124.90/9,781,638.78 = 2,143,461.98/x
  3. Step 3: Cross multiply
    6,520,124.90x = 9,781,638.78 × 2,143,461.98
  4. Step 4: Simplify right side
    6,520,124.90x = 20,966,570,827,023.58
  5. Step 5: Solve for x
    x = 20,966,570,827,023.58/6,520,124.90
  6. Step 6: Final answer
    x = 3,215,670.12

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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.