Home / 970,511,189.87-1,339,365,461.57-535,491,172.41

Finding the Fourth Proportional to 970,511,189.87, 1,339,365,461.57 and 535,491,172.41

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Solution

The fourth proportional to 970,511,189.87, 1,339,365,461.57 and 535,491,172.41 is: 739,010,934.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,511,189.87 : 1,339,365,461.57 = 535,491,172.41 : x
  2. Step 2: Convert to fraction form
    970,511,189.87/1,339,365,461.57 = 535,491,172.41/x
  3. Step 3: Cross multiply
    970,511,189.87x = 1,339,365,461.57 × 535,491,172.41
  4. Step 4: Simplify right side
    970,511,189.87x = 717,218,381,298,902,656
  5. Step 5: Solve for x
    x = 717,218,381,298,902,656/970,511,189.87
  6. Step 6: Final answer
    x = 739,010,934.43

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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.