Home / 135,047,672.07-186,308,719.57-90,408,025.53

Finding the Fourth Proportional to 135,047,672.07, 186,308,719.57 and 90,408,025.53

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Solution

The fourth proportional to 135,047,672.07, 186,308,719.57 and 90,408,025.53 is: 124,724,870.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,047,672.07 : 186,308,719.57 = 90,408,025.53 : x
  2. Step 2: Convert to fraction form
    135,047,672.07/186,308,719.57 = 90,408,025.53/x
  3. Step 3: Cross multiply
    135,047,672.07x = 186,308,719.57 × 90,408,025.53
  4. Step 4: Simplify right side
    135,047,672.07x = 16,843,803,474,951,086
  5. Step 5: Solve for x
    x = 16,843,803,474,951,086/135,047,672.07
  6. Step 6: Final answer
    x = 124,724,870.98

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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.