Home / 843,661,779.57-1,265,031,339.80-669,900,999.84

Finding the Fourth Proportional to 843,661,779.57, 1,265,031,339.80 and 669,900,999.84

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Solution

The fourth proportional to 843,661,779.57, 1,265,031,339.80 and 669,900,999.84 is: 1,004,485,185.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,661,779.57 : 1,265,031,339.80 = 669,900,999.84 : x
  2. Step 2: Convert to fraction form
    843,661,779.57/1,265,031,339.80 = 669,900,999.84/x
  3. Step 3: Cross multiply
    843,661,779.57x = 1,265,031,339.80 × 669,900,999.84
  4. Step 4: Simplify right side
    843,661,779.57x = 847,445,759,360,954,752
  5. Step 5: Solve for x
    x = 847,445,759,360,954,752/843,661,779.57
  6. Step 6: Final answer
    x = 1,004,485,185.75

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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.