Home / 42,612,755.32-63,928,602.69-19,881,252.28

Finding the Fourth Proportional to 42,612,755.32, 63,928,602.69 and 19,881,252.28

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Solution

The fourth proportional to 42,612,755.32, 63,928,602.69 and 19,881,252.28 is: 29,826,296.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,612,755.32 : 63,928,602.69 = 19,881,252.28 : x
  2. Step 2: Convert to fraction form
    42,612,755.32/63,928,602.69 = 19,881,252.28/x
  3. Step 3: Cross multiply
    42,612,755.32x = 63,928,602.69 × 19,881,252.28
  4. Step 4: Simplify right side
    42,612,755.32x = 1,270,980,677,987,776.75
  5. Step 5: Solve for x
    x = 1,270,980,677,987,776.75/42,612,755.32
  6. Step 6: Final answer
    x = 29,826,296.57

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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.