Home / 768,237,438.31-1,060,193,360.66-470,822,209.20

Finding the Fourth Proportional to 768,237,438.31, 1,060,193,360.66 and 470,822,209.20

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Solution

The fourth proportional to 768,237,438.31, 1,060,193,360.66 and 470,822,209.20 is: 649,750,396.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,237,438.31 : 1,060,193,360.66 = 470,822,209.20 : x
  2. Step 2: Convert to fraction form
    768,237,438.31/1,060,193,360.66 = 470,822,209.20/x
  3. Step 3: Cross multiply
    768,237,438.31x = 1,060,193,360.66 × 470,822,209.20
  4. Step 4: Simplify right side
    768,237,438.31x = 499,162,580,242,759,424
  5. Step 5: Solve for x
    x = 499,162,580,242,759,424/768,237,438.31
  6. Step 6: Final answer
    x = 649,750,396.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.