Home / 90,185,725.61-135,276,221.76-28,778,631.48

Finding the Fourth Proportional to 90,185,725.61, 135,276,221.76 and 28,778,631.48

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Solution

The fourth proportional to 90,185,725.61, 135,276,221.76 and 28,778,631.48 is: 43,167,192.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,185,725.61 : 135,276,221.76 = 28,778,631.48 : x
  2. Step 2: Convert to fraction form
    90,185,725.61/135,276,221.76 = 28,778,631.48/x
  3. Step 3: Cross multiply
    90,185,725.61x = 135,276,221.76 × 28,778,631.48
  4. Step 4: Simplify right side
    90,185,725.61x = 3,893,064,534,037,797
  5. Step 5: Solve for x
    x = 3,893,064,534,037,797/90,185,725.61
  6. Step 6: Final answer
    x = 43,167,192.01

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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.