Home / 19,987,392.40-27,582,689.60-10,820,035.12

Finding the Fourth Proportional to 19,987,392.40, 27,582,689.60 and 10,820,035.12

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Solution

The fourth proportional to 19,987,392.40, 27,582,689.60 and 10,820,035.12 is: 14,931,696.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987,392.40 : 27,582,689.60 = 10,820,035.12 : x
  2. Step 2: Convert to fraction form
    19,987,392.40/27,582,689.60 = 10,820,035.12/x
  3. Step 3: Cross multiply
    19,987,392.40x = 27,582,689.60 × 10,820,035.12
  4. Step 4: Simplify right side
    19,987,392.40x = 298,445,670,176,058.75
  5. Step 5: Solve for x
    x = 298,445,670,176,058.75/19,987,392.40
  6. Step 6: Final answer
    x = 14,931,696.15

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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.