Home / 818,873,399.80-1,228,310,099.70-586,421,106.40

Finding the Fourth Proportional to 818,873,399.80, 1,228,310,099.70 and 586,421,106.40

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Solution

The fourth proportional to 818,873,399.80, 1,228,310,099.70 and 586,421,106.40 is: 879,631,659.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,873,399.80 : 1,228,310,099.70 = 586,421,106.40 : x
  2. Step 2: Convert to fraction form
    818,873,399.80/1,228,310,099.70 = 586,421,106.40/x
  3. Step 3: Cross multiply
    818,873,399.80x = 1,228,310,099.70 × 586,421,106.40
  4. Step 4: Simplify right side
    818,873,399.80x = 720,306,967,668,368,256
  5. Step 5: Solve for x
    x = 720,306,967,668,368,256/818,873,399.80
  6. Step 6: Final answer
    x = 879,631,659.60

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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.