Home / 1,159,716,975.36-1,600,409,687.76-638,196,207.36

Finding the Fourth Proportional to 1,159,716,975.36, 1,600,409,687.76 and 638,196,207.36

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Solution

The fourth proportional to 1,159,716,975.36, 1,600,409,687.76 and 638,196,207.36 is: 880,710,910.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,716,975.36 : 1,600,409,687.76 = 638,196,207.36 : x
  2. Step 2: Convert to fraction form
    1,159,716,975.36/1,600,409,687.76 = 638,196,207.36/x
  3. Step 3: Cross multiply
    1,159,716,975.36x = 1,600,409,687.76 × 638,196,207.36
  4. Step 4: Simplify right side
    1,159,716,975.36x = 1,021,375,392,950,633,856
  5. Step 5: Solve for x
    x = 1,021,375,392,950,633,856/1,159,716,975.36
  6. Step 6: Final answer
    x = 880,710,910.21

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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.