Home / 21,000,632.32-28,980,892.13-11,342,840.32

Finding the Fourth Proportional to 21,000,632.32, 28,980,892.13 and 11,342,840.32

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Solution

The fourth proportional to 21,000,632.32, 28,980,892.13 and 11,342,840.32 is: 15,653,130.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000,632.32 : 28,980,892.13 = 11,342,840.32 : x
  2. Step 2: Convert to fraction form
    21,000,632.32/28,980,892.13 = 11,342,840.32/x
  3. Step 3: Cross multiply
    21,000,632.32x = 28,980,892.13 × 11,342,840.32
  4. Step 4: Simplify right side
    21,000,632.32x = 328,725,631,560,116
  5. Step 5: Solve for x
    x = 328,725,631,560,116/21,000,632.32
  6. Step 6: Final answer
    x = 15,653,130.18

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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.