Home / 15,001,706.18-20,702,453.90-8,126,188.17

Finding the Fourth Proportional to 15,001,706.18, 20,702,453.90 and 8,126,188.17

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Solution

The fourth proportional to 15,001,706.18, 20,702,453.90 and 8,126,188.17 is: 11,214,193.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001,706.18 : 20,702,453.90 = 8,126,188.17 : x
  2. Step 2: Convert to fraction form
    15,001,706.18/20,702,453.90 = 8,126,188.17/x
  3. Step 3: Cross multiply
    15,001,706.18x = 20,702,453.90 × 8,126,188.17
  4. Step 4: Simplify right side
    15,001,706.18x = 168,232,035,931,519.41
  5. Step 5: Solve for x
    x = 168,232,035,931,519.41/15,001,706.18
  6. Step 6: Final answer
    x = 11,214,193.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.