Home / 130,379,999.40-195,569,999.10-128,466,811.80

Finding the Fourth Proportional to 130,379,999.40, 195,569,999.10 and 128,466,811.80

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Solution

The fourth proportional to 130,379,999.40, 195,569,999.10 and 128,466,811.80 is: 192,700,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,379,999.40 : 195,569,999.10 = 128,466,811.80 : x
  2. Step 2: Convert to fraction form
    130,379,999.40/195,569,999.10 = 128,466,811.80/x
  3. Step 3: Cross multiply
    130,379,999.40x = 195,569,999.10 × 128,466,811.80
  4. Step 4: Simplify right side
    130,379,999.40x = 25,124,254,268,105,868
  5. Step 5: Solve for x
    x = 25,124,254,268,105,868/130,379,999.40
  6. Step 6: Final answer
    x = 192,700,217.70

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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.