Home / 1,224,271,711.20-1,689,481,209.60-667,342,538.40

Finding the Fourth Proportional to 1,224,271,711.20, 1,689,481,209.60 and 667,342,538.40

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Solution

The fourth proportional to 1,224,271,711.20, 1,689,481,209.60 and 667,342,538.40 is: 920,925,206.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,271,711.20 : 1,689,481,209.60 = 667,342,538.40 : x
  2. Step 2: Convert to fraction form
    1,224,271,711.20/1,689,481,209.60 = 667,342,538.40/x
  3. Step 3: Cross multiply
    1,224,271,711.20x = 1,689,481,209.60 × 667,342,538.40
  4. Step 4: Simplify right side
    1,224,271,711.20x = 1,127,462,678,993,566,336
  5. Step 5: Solve for x
    x = 1,127,462,678,993,566,336/1,224,271,711.20
  6. Step 6: Final answer
    x = 920,925,206.94

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Double scale
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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.