Home / 42,616,686.40-63,851,546.40-19,850,891.20

Finding the Fourth Proportional to 42,616,686.40, 63,851,546.40 and 19,850,891.20

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Solution

The fourth proportional to 42,616,686.40, 63,851,546.40 and 19,850,891.20 is: 29,742,108.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,616,686.40 : 63,851,546.40 = 19,850,891.20 : x
  2. Step 2: Convert to fraction form
    42,616,686.40/63,851,546.40 = 19,850,891.20/x
  3. Step 3: Cross multiply
    42,616,686.40x = 63,851,546.40 × 19,850,891.20
  4. Step 4: Simplify right side
    42,616,686.40x = 1,267,510,100,538,151.50
  5. Step 5: Solve for x
    x = 1,267,510,100,538,151.50/42,616,686.40
  6. Step 6: Final answer
    x = 29,742,108.26

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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.