Home / 1,207,266,043.89-1,810,896,805.53-378,283,148.90

Finding the Fourth Proportional to 1,207,266,043.89, 1,810,896,805.53 and 378,283,148.90

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Solution

The fourth proportional to 1,207,266,043.89, 1,810,896,805.53 and 378,283,148.90 is: 567,424,015.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,266,043.89 : 1,810,896,805.53 = 378,283,148.90 : x
  2. Step 2: Convert to fraction form
    1,207,266,043.89/1,810,896,805.53 = 378,283,148.90/x
  3. Step 3: Cross multiply
    1,207,266,043.89x = 1,810,896,805.53 × 378,283,148.90
  4. Step 4: Simplify right side
    1,207,266,043.89x = 685,031,745,919,784,832
  5. Step 5: Solve for x
    x = 685,031,745,919,784,832/1,207,266,043.89
  6. Step 6: Final answer
    x = 567,424,015.10

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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.