Home / 28,975,320.40-43,462,980.60-18,771,653.20

Finding the Fourth Proportional to 28,975,320.40, 43,462,980.60 and 18,771,653.20

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Solution

The fourth proportional to 28,975,320.40, 43,462,980.60 and 18,771,653.20 is: 28,157,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,975,320.40 : 43,462,980.60 = 18,771,653.20 : x
  2. Step 2: Convert to fraction form
    28,975,320.40/43,462,980.60 = 18,771,653.20/x
  3. Step 3: Cross multiply
    28,975,320.40x = 43,462,980.60 × 18,771,653.20
  4. Step 4: Simplify right side
    28,975,320.40x = 815,871,998,861,527.88
  5. Step 5: Solve for x
    x = 815,871,998,861,527.88/28,975,320.40
  6. Step 6: Final answer
    x = 28,157,479.80

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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.