Home / 19,528,843.32-29,299,776.79-12,989,333.16

Finding the Fourth Proportional to 19,528,843.32, 29,299,776.79 and 12,989,333.16

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Solution

The fourth proportional to 19,528,843.32, 29,299,776.79 and 12,989,333.16 is: 19,488,330.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,528,843.32 : 29,299,776.79 = 12,989,333.16 : x
  2. Step 2: Convert to fraction form
    19,528,843.32/29,299,776.79 = 12,989,333.16/x
  3. Step 3: Cross multiply
    19,528,843.32x = 29,299,776.79 × 12,989,333.16
  4. Step 4: Simplify right side
    19,528,843.32x = 380,584,562,238,945.38
  5. Step 5: Solve for x
    x = 380,584,562,238,945.38/19,528,843.32
  6. Step 6: Final answer
    x = 19,488,330.98

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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.