Home / 42,762,867.76-64,144,300.80-19,726,987.76

Finding the Fourth Proportional to 42,762,867.76, 64,144,300.80 and 19,726,987.76

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Solution

The fourth proportional to 42,762,867.76, 64,144,300.80 and 19,726,987.76 is: 29,590,481.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,762,867.76 : 64,144,300.80 = 19,726,987.76 : x
  2. Step 2: Convert to fraction form
    42,762,867.76/64,144,300.80 = 19,726,987.76/x
  3. Step 3: Cross multiply
    42,762,867.76x = 64,144,300.80 × 19,726,987.76
  4. Step 4: Simplify right side
    42,762,867.76x = 1,265,373,836,755,358.25
  5. Step 5: Solve for x
    x = 1,265,373,836,755,358.25/42,762,867.76
  6. Step 6: Final answer
    x = 29,590,481.25

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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.