Home / 90,185,726.11-135,276,222.51-28,778,631.98

Finding the Fourth Proportional to 90,185,726.11, 135,276,222.51 and 28,778,631.98

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Solution

The fourth proportional to 90,185,726.11, 135,276,222.51 and 28,778,631.98 is: 43,167,192.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,185,726.11 : 135,276,222.51 = 28,778,631.98 : x
  2. Step 2: Convert to fraction form
    90,185,726.11/135,276,222.51 = 28,778,631.98/x
  3. Step 3: Cross multiply
    90,185,726.11x = 135,276,222.51 × 28,778,631.98
  4. Step 4: Simplify right side
    90,185,726.11x = 3,893,064,623,259,881.50
  5. Step 5: Solve for x
    x = 3,893,064,623,259,881.50/90,185,726.11
  6. Step 6: Final answer
    x = 43,167,192.76

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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.