Home / 12,960,038.60-19,440,057.90-8,928,960.20

Finding the Fourth Proportional to 12,960,038.60, 19,440,057.90 and 8,928,960.20

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Solution

The fourth proportional to 12,960,038.60, 19,440,057.90 and 8,928,960.20 is: 13,393,440.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,038.60 : 19,440,057.90 = 8,928,960.20 : x
  2. Step 2: Convert to fraction form
    12,960,038.60/19,440,057.90 = 8,928,960.20/x
  3. Step 3: Cross multiply
    12,960,038.60x = 19,440,057.90 × 8,928,960.20
  4. Step 4: Simplify right side
    12,960,038.60x = 173,579,503,274,795.56
  5. Step 5: Solve for x
    x = 173,579,503,274,795.56/12,960,038.60
  6. Step 6: Final answer
    x = 13,393,440.30

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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.