Home / 28,115,611.72-42,174,345.43-9,671,371.45

Finding the Fourth Proportional to 28,115,611.72, 42,174,345.43 and 9,671,371.45

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Solution

The fourth proportional to 28,115,611.72, 42,174,345.43 and 9,671,371.45 is: 14,507,376.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115,611.72 : 42,174,345.43 = 9,671,371.45 : x
  2. Step 2: Convert to fraction form
    28,115,611.72/42,174,345.43 = 9,671,371.45/x
  3. Step 3: Cross multiply
    28,115,611.72x = 42,174,345.43 × 9,671,371.45
  4. Step 4: Simplify right side
    28,115,611.72x = 407,883,760,220,793.31
  5. Step 5: Solve for x
    x = 407,883,760,220,793.31/28,115,611.72
  6. Step 6: Final answer
    x = 14,507,376.34

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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.