Home / 138,169,108.67-190,593,437.81-89,276,536.67

Finding the Fourth Proportional to 138,169,108.67, 190,593,437.81 and 89,276,536.67

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Solution

The fourth proportional to 138,169,108.67, 190,593,437.81 and 89,276,536.67 is: 123,149,973.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,169,108.67 : 190,593,437.81 = 89,276,536.67 : x
  2. Step 2: Convert to fraction form
    138,169,108.67/190,593,437.81 = 89,276,536.67/x
  3. Step 3: Cross multiply
    138,169,108.67x = 190,593,437.81 × 89,276,536.67
  4. Step 4: Simplify right side
    138,169,108.67x = 17,015,522,038,306,482
  5. Step 5: Solve for x
    x = 17,015,522,038,306,482/138,169,108.67
  6. Step 6: Final answer
    x = 123,149,973.27

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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.