Home / 131,130,636.20-180,983,965.38-78,210,735.56

Finding the Fourth Proportional to 131,130,636.20, 180,983,965.38 and 78,210,735.56

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Solution

The fourth proportional to 131,130,636.20, 180,983,965.38 and 78,210,735.56 is: 107,944,943.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,130,636.20 : 180,983,965.38 = 78,210,735.56 : x
  2. Step 2: Convert to fraction form
    131,130,636.20/180,983,965.38 = 78,210,735.56/x
  3. Step 3: Cross multiply
    131,130,636.20x = 180,983,965.38 × 78,210,735.56
  4. Step 4: Simplify right side
    131,130,636.20x = 14,154,889,056,935,374
  5. Step 5: Solve for x
    x = 14,154,889,056,935,374/131,130,636.20
  6. Step 6: Final answer
    x = 107,944,943.05

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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.