Home / 130,191,890.70-195,216,880.05-39,303,669.90

Finding the Fourth Proportional to 130,191,890.70, 195,216,880.05 and 39,303,669.90

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Solution

The fourth proportional to 130,191,890.70, 195,216,880.05 and 39,303,669.90 is: 58,934,083.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,191,890.70 : 195,216,880.05 = 39,303,669.90 : x
  2. Step 2: Convert to fraction form
    130,191,890.70/195,216,880.05 = 39,303,669.90/x
  3. Step 3: Cross multiply
    130,191,890.70x = 195,216,880.05 × 39,303,669.90
  4. Step 4: Simplify right side
    130,191,890.70x = 7,672,739,812,393,096
  5. Step 5: Solve for x
    x = 7,672,739,812,393,096/130,191,890.70
  6. Step 6: Final answer
    x = 58,934,083.92

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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.