Home / 808,529,345.70-1,212,794,018.55-723,876,699.30

Finding the Fourth Proportional to 808,529,345.70, 1,212,794,018.55 and 723,876,699.30

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Solution

The fourth proportional to 808,529,345.70, 1,212,794,018.55 and 723,876,699.30 is: 1,085,815,048.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,529,345.70 : 1,212,794,018.55 = 723,876,699.30 : x
  2. Step 2: Convert to fraction form
    808,529,345.70/1,212,794,018.55 = 723,876,699.30/x
  3. Step 3: Cross multiply
    808,529,345.70x = 1,212,794,018.55 × 723,876,699.30
  4. Step 4: Simplify right side
    808,529,345.70x = 877,913,331,078,756,864
  5. Step 5: Solve for x
    x = 877,913,331,078,756,864/808,529,345.70
  6. Step 6: Final answer
    x = 1,085,815,048.95

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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.