Home / 858,253,409.02-1,287,572,019.14-312,994,943.02

Finding the Fourth Proportional to 858,253,409.02, 1,287,572,019.14 and 312,994,943.02

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Solution

The fourth proportional to 858,253,409.02, 1,287,572,019.14 and 312,994,943.02 is: 469,562,400.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,253,409.02 : 1,287,572,019.14 = 312,994,943.02 : x
  2. Step 2: Convert to fraction form
    858,253,409.02/1,287,572,019.14 = 312,994,943.02/x
  3. Step 3: Cross multiply
    858,253,409.02x = 1,287,572,019.14 × 312,994,943.02
  4. Step 4: Simplify right side
    858,253,409.02x = 403,003,530,764,870,656
  5. Step 5: Solve for x
    x = 403,003,530,764,870,656/858,253,409.02
  6. Step 6: Final answer
    x = 469,562,400.25

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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.