Home / 10,520,368.68-14,512,759.80-6,389,300.64

Finding the Fourth Proportional to 10,520,368.68, 14,512,759.80 and 6,389,300.64

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Solution

The fourth proportional to 10,520,368.68, 14,512,759.80 and 6,389,300.64 is: 8,813,986.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520,368.68 : 14,512,759.80 = 6,389,300.64 : x
  2. Step 2: Convert to fraction form
    10,520,368.68/14,512,759.80 = 6,389,300.64/x
  3. Step 3: Cross multiply
    10,520,368.68x = 14,512,759.80 × 6,389,300.64
  4. Step 4: Simplify right side
    10,520,368.68x = 92,726,385,478,306.27
  5. Step 5: Solve for x
    x = 92,726,385,478,306.27/10,520,368.68
  6. Step 6: Final answer
    x = 8,813,986.31

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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.