Home / 858,673,638.90-1,288,010,458.35-800,852,858.10

Finding the Fourth Proportional to 858,673,638.90, 1,288,010,458.35 and 800,852,858.10

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Solution

The fourth proportional to 858,673,638.90, 1,288,010,458.35 and 800,852,858.10 is: 1,201,279,287.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,673,638.90 : 1,288,010,458.35 = 800,852,858.10 : x
  2. Step 2: Convert to fraction form
    858,673,638.90/1,288,010,458.35 = 800,852,858.10/x
  3. Step 3: Cross multiply
    858,673,638.90x = 1,288,010,458.35 × 800,852,858.10
  4. Step 4: Simplify right side
    858,673,638.90x = 1,031,506,856,832,288,512
  5. Step 5: Solve for x
    x = 1,031,506,856,832,288,512/858,673,638.90
  6. Step 6: Final answer
    x = 1,201,279,287.15

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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.