Home / 130,604,940.80-195,683,462.40-85,143,334.40

Finding the Fourth Proportional to 130,604,940.80, 195,683,462.40 and 85,143,334.40

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Solution

The fourth proportional to 130,604,940.80, 195,683,462.40 and 85,143,334.40 is: 127,569,005.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,604,940.80 : 195,683,462.40 = 85,143,334.40 : x
  2. Step 2: Convert to fraction form
    130,604,940.80/195,683,462.40 = 85,143,334.40/x
  3. Step 3: Cross multiply
    130,604,940.80x = 195,683,462.40 × 85,143,334.40
  4. Step 4: Simplify right side
    130,604,940.80x = 16,661,142,475,673,028
  5. Step 5: Solve for x
    x = 16,661,142,475,673,028/130,604,940.80
  6. Step 6: Final answer
    x = 127,569,005.99

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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.