Home / 1,306,981,498.86-1,961,051,186.95-685,048,925.87

Finding the Fourth Proportional to 1,306,981,498.86, 1,961,051,186.95 and 685,048,925.87

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Solution

The fourth proportional to 1,306,981,498.86, 1,961,051,186.95 and 685,048,925.87 is: 1,027,876,837.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,981,498.86 : 1,961,051,186.95 = 685,048,925.87 : x
  2. Step 2: Convert to fraction form
    1,306,981,498.86/1,961,051,186.95 = 685,048,925.87/x
  3. Step 3: Cross multiply
    1,306,981,498.86x = 1,961,051,186.95 × 685,048,925.87
  4. Step 4: Simplify right side
    1,306,981,498.86x = 1,343,416,009,196,186,112
  5. Step 5: Solve for x
    x = 1,343,416,009,196,186,112/1,306,981,498.86
  6. Step 6: Final answer
    x = 1,027,876,837.10

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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.