Home / 1,306,981,497.86-1,961,051,185.45-685,048,924.87

Finding the Fourth Proportional to 1,306,981,497.86, 1,961,051,185.45 and 685,048,924.87

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Solution

The fourth proportional to 1,306,981,497.86, 1,961,051,185.45 and 685,048,924.87 is: 1,027,876,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,981,497.86 : 1,961,051,185.45 = 685,048,924.87 : x
  2. Step 2: Convert to fraction form
    1,306,981,497.86/1,961,051,185.45 = 685,048,924.87/x
  3. Step 3: Cross multiply
    1,306,981,497.86x = 1,961,051,185.45 × 685,048,924.87
  4. Step 4: Simplify right side
    1,306,981,497.86x = 1,343,416,006,207,561,472
  5. Step 5: Solve for x
    x = 1,343,416,006,207,561,472/1,306,981,497.86
  6. Step 6: Final answer
    x = 1,027,876,835.60

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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.