Home / 30,115,999.80-45,173,999.70-25,581,036.60

Finding the Fourth Proportional to 30,115,999.80, 45,173,999.70 and 25,581,036.60

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Solution

The fourth proportional to 30,115,999.80, 45,173,999.70 and 25,581,036.60 is: 38,371,554.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,115,999.80 : 45,173,999.70 = 25,581,036.60 : x
  2. Step 2: Convert to fraction form
    30,115,999.80/45,173,999.70 = 25,581,036.60/x
  3. Step 3: Cross multiply
    30,115,999.80x = 45,173,999.70 × 25,581,036.60
  4. Step 4: Simplify right side
    30,115,999.80x = 1,155,597,739,694,089.25
  5. Step 5: Solve for x
    x = 1,155,597,739,694,089.25/30,115,999.80
  6. Step 6: Final answer
    x = 38,371,554.90

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1.5x scale

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.