Home / 247,161,856.80-370,742,785.20-189,942,938.40

Finding the Fourth Proportional to 247,161,856.80, 370,742,785.20 and 189,942,938.40

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Solution

The fourth proportional to 247,161,856.80, 370,742,785.20 and 189,942,938.40 is: 284,914,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,161,856.80 : 370,742,785.20 = 189,942,938.40 : x
  2. Step 2: Convert to fraction form
    247,161,856.80/370,742,785.20 = 189,942,938.40/x
  3. Step 3: Cross multiply
    247,161,856.80x = 370,742,785.20 × 189,942,938.40
  4. Step 4: Simplify right side
    247,161,856.80x = 70,419,974,011,488,032
  5. Step 5: Solve for x
    x = 70,419,974,011,488,032/247,161,856.80
  6. Step 6: Final answer
    x = 284,914,407.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.