Home / 807,788,477.55-1,211,682,716.33-316,338,412.80

Finding the Fourth Proportional to 807,788,477.55, 1,211,682,716.33 and 316,338,412.80

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Solution

The fourth proportional to 807,788,477.55, 1,211,682,716.33 and 316,338,412.80 is: 474,507,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,788,477.55 : 1,211,682,716.33 = 316,338,412.80 : x
  2. Step 2: Convert to fraction form
    807,788,477.55/1,211,682,716.33 = 316,338,412.80/x
  3. Step 3: Cross multiply
    807,788,477.55x = 1,211,682,716.33 × 316,338,412.80
  4. Step 4: Simplify right side
    807,788,477.55x = 383,301,787,299,443,200
  5. Step 5: Solve for x
    x = 383,301,787,299,443,200/807,788,477.55
  6. Step 6: Final answer
    x = 474,507,619.20

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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.