Home / 13,643,601,916.80-20,465,402,875.20-8,340,245,889.60

Finding the Fourth Proportional to 13,643,601,916.80, 20,465,402,875.20 and 8,340,245,889.60

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Solution

The fourth proportional to 13,643,601,916.80, 20,465,402,875.20 and 8,340,245,889.60 is: 12,510,368,834.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,643,601,916.80 : 20,465,402,875.20 = 8,340,245,889.60 : x
  2. Step 2: Convert to fraction form
    13,643,601,916.80/20,465,402,875.20 = 8,340,245,889.60/x
  3. Step 3: Cross multiply
    13,643,601,916.80x = 20,465,402,875.20 × 8,340,245,889.60
  4. Step 4: Simplify right side
    13,643,601,916.80x = 170,686,492,208,894,836,736
  5. Step 5: Solve for x
    x = 170,686,492,208,894,836,736/13,643,601,916.80
  6. Step 6: Final answer
    x = 12,510,368,834.40

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Double scale
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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.