Home / 1,207,652,004.30-1,811,478,006.45-517,629,009.90

Finding the Fourth Proportional to 1,207,652,004.30, 1,811,478,006.45 and 517,629,009.90

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Solution

The fourth proportional to 1,207,652,004.30, 1,811,478,006.45 and 517,629,009.90 is: 776,443,514.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,652,004.30 : 1,811,478,006.45 = 517,629,009.90 : x
  2. Step 2: Convert to fraction form
    1,207,652,004.30/1,811,478,006.45 = 517,629,009.90/x
  3. Step 3: Cross multiply
    1,207,652,004.30x = 1,811,478,006.45 × 517,629,009.90
  4. Step 4: Simplify right side
    1,207,652,004.30x = 937,673,566,934,339,328
  5. Step 5: Solve for x
    x = 937,673,566,934,339,328/1,207,652,004.30
  6. Step 6: Final answer
    x = 776,443,514.85

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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.