Home / 869,033,699.74-1,199,289,234.77-472,579,876.36

Finding the Fourth Proportional to 869,033,699.74, 1,199,289,234.77 and 472,579,876.36

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Solution

The fourth proportional to 869,033,699.74, 1,199,289,234.77 and 472,579,876.36 is: 652,172,589.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,033,699.74 : 1,199,289,234.77 = 472,579,876.36 : x
  2. Step 2: Convert to fraction form
    869,033,699.74/1,199,289,234.77 = 472,579,876.36/x
  3. Step 3: Cross multiply
    869,033,699.74x = 1,199,289,234.77 × 472,579,876.36
  4. Step 4: Simplify right side
    869,033,699.74x = 566,759,958,287,485,632
  5. Step 5: Solve for x
    x = 566,759,958,287,485,632/869,033,699.74
  6. Step 6: Final answer
    x = 652,172,589.46

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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.