Home / 13,140,903.80-19,711,355.70-8,605,940.60

Finding the Fourth Proportional to 13,140,903.80, 19,711,355.70 and 8,605,940.60

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Solution

The fourth proportional to 13,140,903.80, 19,711,355.70 and 8,605,940.60 is: 12,908,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140,903.80 : 19,711,355.70 = 8,605,940.60 : x
  2. Step 2: Convert to fraction form
    13,140,903.80/19,711,355.70 = 8,605,940.60/x
  3. Step 3: Cross multiply
    13,140,903.80x = 19,711,355.70 × 8,605,940.60
  4. Step 4: Simplify right side
    13,140,903.80x = 169,634,756,299,671.41
  5. Step 5: Solve for x
    x = 169,634,756,299,671.41/13,140,903.80
  6. Step 6: Final answer
    x = 12,908,910.90

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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.