Home / 42,365,872.80-63,548,809.20-12,069,799.20

Finding the Fourth Proportional to 42,365,872.80, 63,548,809.20 and 12,069,799.20

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Solution

The fourth proportional to 42,365,872.80, 63,548,809.20 and 12,069,799.20 is: 18,104,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,365,872.80 : 63,548,809.20 = 12,069,799.20 : x
  2. Step 2: Convert to fraction form
    42,365,872.80/63,548,809.20 = 12,069,799.20/x
  3. Step 3: Cross multiply
    42,365,872.80x = 63,548,809.20 × 12,069,799.20
  4. Step 4: Simplify right side
    42,365,872.80x = 767,021,366,443,112.62
  5. Step 5: Solve for x
    x = 767,021,366,443,112.62/42,365,872.80
  6. Step 6: Final answer
    x = 18,104,698.80

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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.