Home / 858,241,756.20-1,287,362,634.30-313,001,077.80

Finding the Fourth Proportional to 858,241,756.20, 1,287,362,634.30 and 313,001,077.80

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Solution

The fourth proportional to 858,241,756.20, 1,287,362,634.30 and 313,001,077.80 is: 469,501,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,241,756.20 : 1,287,362,634.30 = 313,001,077.80 : x
  2. Step 2: Convert to fraction form
    858,241,756.20/1,287,362,634.30 = 313,001,077.80/x
  3. Step 3: Cross multiply
    858,241,756.20x = 1,287,362,634.30 × 313,001,077.80
  4. Step 4: Simplify right side
    858,241,756.20x = 402,945,892,055,347,264
  5. Step 5: Solve for x
    x = 402,945,892,055,347,264/858,241,756.20
  6. Step 6: Final answer
    x = 469,501,616.70

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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.