Home / 805,740,287.20-1,208,610,430.80-260,536,933.60

Finding the Fourth Proportional to 805,740,287.20, 1,208,610,430.80 and 260,536,933.60

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Solution

The fourth proportional to 805,740,287.20, 1,208,610,430.80 and 260,536,933.60 is: 390,805,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,740,287.20 : 1,208,610,430.80 = 260,536,933.60 : x
  2. Step 2: Convert to fraction form
    805,740,287.20/1,208,610,430.80 = 260,536,933.60/x
  3. Step 3: Cross multiply
    805,740,287.20x = 1,208,610,430.80 × 260,536,933.60
  4. Step 4: Simplify right side
    805,740,287.20x = 314,887,655,557,606,976
  5. Step 5: Solve for x
    x = 314,887,655,557,606,976/805,740,287.20
  6. Step 6: Final answer
    x = 390,805,400.40

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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.