Home / 131,140,030.37-180,969,634.14-72,401,628.11

Finding the Fourth Proportional to 131,140,030.37, 180,969,634.14 and 72,401,628.11

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Solution

The fourth proportional to 131,140,030.37, 180,969,634.14 and 72,401,628.11 is: 99,912,254.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,140,030.37 : 180,969,634.14 = 72,401,628.11 : x
  2. Step 2: Convert to fraction form
    131,140,030.37/180,969,634.14 = 72,401,628.11/x
  3. Step 3: Cross multiply
    131,140,030.37x = 180,969,634.14 × 72,401,628.11
  4. Step 4: Simplify right side
    131,140,030.37x = 13,102,496,150,252,088
  5. Step 5: Solve for x
    x = 13,102,496,150,252,088/131,140,030.37
  6. Step 6: Final answer
    x = 99,912,254.96

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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.