Home / 130,405,209.20-195,607,813.80-69,939,033.20

Finding the Fourth Proportional to 130,405,209.20, 195,607,813.80 and 69,939,033.20

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Solution

The fourth proportional to 130,405,209.20, 195,607,813.80 and 69,939,033.20 is: 104,908,549.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,405,209.20 : 195,607,813.80 = 69,939,033.20 : x
  2. Step 2: Convert to fraction form
    130,405,209.20/195,607,813.80 = 69,939,033.20/x
  3. Step 3: Cross multiply
    130,405,209.20x = 195,607,813.80 × 69,939,033.20
  4. Step 4: Simplify right side
    130,405,209.20x = 13,680,621,383,537,620
  5. Step 5: Solve for x
    x = 13,680,621,383,537,620/130,405,209.20
  6. Step 6: Final answer
    x = 104,908,549.80

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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.