Home / 21,137,488.86-29,171,533.59-11,971,762.14

Finding the Fourth Proportional to 21,137,488.86, 29,171,533.59 and 11,971,762.14

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Solution

The fourth proportional to 21,137,488.86, 29,171,533.59 and 11,971,762.14 is: 16,522,050.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,137,488.86 : 29,171,533.59 = 11,971,762.14 : x
  2. Step 2: Convert to fraction form
    21,137,488.86/29,171,533.59 = 11,971,762.14/x
  3. Step 3: Cross multiply
    21,137,488.86x = 29,171,533.59 × 11,971,762.14
  4. Step 4: Simplify right side
    21,137,488.86x = 349,234,661,398,500.31
  5. Step 5: Solve for x
    x = 349,234,661,398,500.31/21,137,488.86
  6. Step 6: Final answer
    x = 16,522,050.64

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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.