Home / 131,106,686.76-180,927,200.39-72,369,336.56

Finding the Fourth Proportional to 131,106,686.76, 180,927,200.39 and 72,369,336.56

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Solution

The fourth proportional to 131,106,686.76, 180,927,200.39 and 72,369,336.56 is: 99,869,669.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,106,686.76 : 180,927,200.39 = 72,369,336.56 : x
  2. Step 2: Convert to fraction form
    131,106,686.76/180,927,200.39 = 72,369,336.56/x
  3. Step 3: Cross multiply
    131,106,686.76x = 180,927,200.39 × 72,369,336.56
  4. Step 4: Simplify right side
    131,106,686.76x = 13,093,581,456,615,992
  5. Step 5: Solve for x
    x = 13,093,581,456,615,992/131,106,686.76
  6. Step 6: Final answer
    x = 99,869,669.35

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1.5x scale

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.