Home / 9,720,019.20-14,580,028.80-5,460,326.40

Finding the Fourth Proportional to 9,720,019.20, 14,580,028.80 and 5,460,326.40

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Solution

The fourth proportional to 9,720,019.20, 14,580,028.80 and 5,460,326.40 is: 8,190,489.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720,019.20 : 14,580,028.80 = 5,460,326.40 : x
  2. Step 2: Convert to fraction form
    9,720,019.20/14,580,028.80 = 5,460,326.40/x
  3. Step 3: Cross multiply
    9,720,019.20x = 14,580,028.80 × 5,460,326.40
  4. Step 4: Simplify right side
    9,720,019.20x = 79,611,716,169,400.33
  5. Step 5: Solve for x
    x = 79,611,716,169,400.33/9,720,019.20
  6. Step 6: Final answer
    x = 8,190,489.60

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Similar ratio
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1.5x scale

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.