Home / 42,604,820.80-63,907,231.20-19,888,014.40

Finding the Fourth Proportional to 42,604,820.80, 63,907,231.20 and 19,888,014.40

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Solution

The fourth proportional to 42,604,820.80, 63,907,231.20 and 19,888,014.40 is: 29,832,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,604,820.80 : 63,907,231.20 = 19,888,014.40 : x
  2. Step 2: Convert to fraction form
    42,604,820.80/63,907,231.20 = 19,888,014.40/x
  3. Step 3: Cross multiply
    42,604,820.80x = 63,907,231.20 × 19,888,014.40
  4. Step 4: Simplify right side
    42,604,820.80x = 1,270,987,934,369,729.25
  5. Step 5: Solve for x
    x = 1,270,987,934,369,729.25/42,604,820.80
  6. Step 6: Final answer
    x = 29,832,021.60

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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.