Home / 21,315,497.63-31,961,007.51-8,346,463.77

Finding the Fourth Proportional to 21,315,497.63, 31,961,007.51 and 8,346,463.77

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Solution

The fourth proportional to 21,315,497.63, 31,961,007.51 and 8,346,463.77 is: 12,514,903.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315,497.63 : 31,961,007.51 = 8,346,463.77 : x
  2. Step 2: Convert to fraction form
    21,315,497.63/31,961,007.51 = 8,346,463.77/x
  3. Step 3: Cross multiply
    21,315,497.63x = 31,961,007.51 × 8,346,463.77
  4. Step 4: Simplify right side
    21,315,497.63x = 266,761,391,323,467.47
  5. Step 5: Solve for x
    x = 266,761,391,323,467.47/21,315,497.63
  6. Step 6: Final answer
    x = 12,514,903.29

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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.