Home / 137,019,742.21-189,087,041.90-74,295,726.20

Finding the Fourth Proportional to 137,019,742.21, 189,087,041.90 and 74,295,726.20

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Solution

The fourth proportional to 137,019,742.21, 189,087,041.90 and 74,295,726.20 is: 102,527,992.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,019,742.21 : 189,087,041.90 = 74,295,726.20 : x
  2. Step 2: Convert to fraction form
    137,019,742.21/189,087,041.90 = 74,295,726.20/x
  3. Step 3: Cross multiply
    137,019,742.21x = 189,087,041.90 × 74,295,726.20
  4. Step 4: Simplify right side
    137,019,742.21x = 14,048,359,092,970,328
  5. Step 5: Solve for x
    x = 14,048,359,092,970,328/137,019,742.21
  6. Step 6: Final answer
    x = 102,527,992.44

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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.