Home / 2,985,986,404.20-4,478,979,606.30-915,691,722.60

Finding the Fourth Proportional to 2,985,986,404.20, 4,478,979,606.30 and 915,691,722.60

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Solution

The fourth proportional to 2,985,986,404.20, 4,478,979,606.30 and 915,691,722.60 is: 1,373,537,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985,986,404.20 : 4,478,979,606.30 = 915,691,722.60 : x
  2. Step 2: Convert to fraction form
    2,985,986,404.20/4,478,979,606.30 = 915,691,722.60/x
  3. Step 3: Cross multiply
    2,985,986,404.20x = 4,478,979,606.30 × 915,691,722.60
  4. Step 4: Simplify right side
    2,985,986,404.20x = 4,101,364,551,183,117,312
  5. Step 5: Solve for x
    x = 4,101,364,551,183,117,312/2,985,986,404.20
  6. Step 6: Final answer
    x = 1,373,537,583.90

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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.