Home / 756,291,323.40-1,134,436,985.10-647,452,206.60

Finding the Fourth Proportional to 756,291,323.40, 1,134,436,985.10 and 647,452,206.60

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Solution

The fourth proportional to 756,291,323.40, 1,134,436,985.10 and 647,452,206.60 is: 971,178,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,291,323.40 : 1,134,436,985.10 = 647,452,206.60 : x
  2. Step 2: Convert to fraction form
    756,291,323.40/1,134,436,985.10 = 647,452,206.60/x
  3. Step 3: Cross multiply
    756,291,323.40x = 1,134,436,985.10 × 647,452,206.60
  4. Step 4: Simplify right side
    756,291,323.40x = 734,493,729,251,646,336
  5. Step 5: Solve for x
    x = 734,493,729,251,646,336/756,291,323.40
  6. Step 6: Final answer
    x = 971,178,309.90

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Double scale
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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.