Home / 20,790,170.16-31,163,264.16-7,830,713.47

Finding the Fourth Proportional to 20,790,170.16, 31,163,264.16 and 7,830,713.47

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Solution

The fourth proportional to 20,790,170.16, 31,163,264.16 and 7,830,713.47 is: 11,737,787.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790,170.16 : 31,163,264.16 = 7,830,713.47 : x
  2. Step 2: Convert to fraction form
    20,790,170.16/31,163,264.16 = 7,830,713.47/x
  3. Step 3: Cross multiply
    20,790,170.16x = 31,163,264.16 × 7,830,713.47
  4. Step 4: Simplify right side
    20,790,170.16x = 244,030,592,426,880.22
  5. Step 5: Solve for x
    x = 244,030,592,426,880.22/20,790,170.16
  6. Step 6: Final answer
    x = 11,737,787.16

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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.