Home / 247,302,014.80-370,953,022.20-85,760,280.40

Finding the Fourth Proportional to 247,302,014.80, 370,953,022.20 and 85,760,280.40

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Solution

The fourth proportional to 247,302,014.80, 370,953,022.20 and 85,760,280.40 is: 128,640,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,302,014.80 : 370,953,022.20 = 85,760,280.40 : x
  2. Step 2: Convert to fraction form
    247,302,014.80/370,953,022.20 = 85,760,280.40/x
  3. Step 3: Cross multiply
    247,302,014.80x = 370,953,022.20 × 85,760,280.40
  4. Step 4: Simplify right side
    247,302,014.80x = 31,813,035,199,099,428
  5. Step 5: Solve for x
    x = 31,813,035,199,099,428/247,302,014.80
  6. Step 6: Final answer
    x = 128,640,420.60

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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.