Home / 42,408,004.80-63,612,007.20-28,971,076.80

Finding the Fourth Proportional to 42,408,004.80, 63,612,007.20 and 28,971,076.80

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Solution

The fourth proportional to 42,408,004.80, 63,612,007.20 and 28,971,076.80 is: 43,456,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,408,004.80 : 63,612,007.20 = 28,971,076.80 : x
  2. Step 2: Convert to fraction form
    42,408,004.80/63,612,007.20 = 28,971,076.80/x
  3. Step 3: Cross multiply
    42,408,004.80x = 63,612,007.20 × 28,971,076.80
  4. Step 4: Simplify right side
    42,408,004.80x = 1,842,908,345,993,353
  5. Step 5: Solve for x
    x = 1,842,908,345,993,353/42,408,004.80
  6. Step 6: Final answer
    x = 43,456,615.20

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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.