Home / 827,143,403.40-1,240,715,105.10-736,745,289.30

Finding the Fourth Proportional to 827,143,403.40, 1,240,715,105.10 and 736,745,289.30

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Solution

The fourth proportional to 827,143,403.40, 1,240,715,105.10 and 736,745,289.30 is: 1,105,117,933.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,143,403.40 : 1,240,715,105.10 = 736,745,289.30 : x
  2. Step 2: Convert to fraction form
    827,143,403.40/1,240,715,105.10 = 736,745,289.30/x
  3. Step 3: Cross multiply
    827,143,403.40x = 1,240,715,105.10 × 736,745,289.30
  4. Step 4: Simplify right side
    827,143,403.40x = 914,091,009,045,779,328
  5. Step 5: Solve for x
    x = 914,091,009,045,779,328/827,143,403.40
  6. Step 6: Final answer
    x = 1,105,117,933.95

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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.