Home / 72,319,761.36-99,759,577.80-43,329,589.20

Finding the Fourth Proportional to 72,319,761.36, 99,759,577.80 and 43,329,589.20

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Solution

The fourth proportional to 72,319,761.36, 99,759,577.80 and 43,329,589.20 is: 59,769,853.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,319,761.36 : 99,759,577.80 = 43,329,589.20 : x
  2. Step 2: Convert to fraction form
    72,319,761.36/99,759,577.80 = 43,329,589.20/x
  3. Step 3: Cross multiply
    72,319,761.36x = 99,759,577.80 × 43,329,589.20
  4. Step 4: Simplify right side
    72,319,761.36x = 4,322,541,524,839,440
  5. Step 5: Solve for x
    x = 4,322,541,524,839,440/72,319,761.36
  6. Step 6: Final answer
    x = 59,769,853.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.