Home / 13,480,172.70-20,220,259.05-12,736,155.30

Finding the Fourth Proportional to 13,480,172.70, 20,220,259.05 and 12,736,155.30

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Solution

The fourth proportional to 13,480,172.70, 20,220,259.05 and 12,736,155.30 is: 19,104,232.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480,172.70 : 20,220,259.05 = 12,736,155.30 : x
  2. Step 2: Convert to fraction form
    13,480,172.70/20,220,259.05 = 12,736,155.30/x
  3. Step 3: Cross multiply
    13,480,172.70x = 20,220,259.05 × 12,736,155.30
  4. Step 4: Simplify right side
    13,480,172.70x = 257,528,359,467,030.50
  5. Step 5: Solve for x
    x = 257,528,359,467,030.50/13,480,172.70
  6. Step 6: Final answer
    x = 19,104,232.95

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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.