Home / 1,359,907,999.40-2,039,861,999.10-439,877,340.20

Finding the Fourth Proportional to 1,359,907,999.40, 2,039,861,999.10 and 439,877,340.20

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Solution

The fourth proportional to 1,359,907,999.40, 2,039,861,999.10 and 439,877,340.20 is: 659,816,010.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,907,999.40 : 2,039,861,999.10 = 439,877,340.20 : x
  2. Step 2: Convert to fraction form
    1,359,907,999.40/2,039,861,999.10 = 439,877,340.20/x
  3. Step 3: Cross multiply
    1,359,907,999.40x = 2,039,861,999.10 × 439,877,340.20
  4. Step 4: Simplify right side
    1,359,907,999.40x = 897,289,070,539,162,752
  5. Step 5: Solve for x
    x = 897,289,070,539,162,752/1,359,907,999.40
  6. Step 6: Final answer
    x = 659,816,010.30

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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.