Home / 315,300,047.10-435,318,803.19-282,202,980.54

Finding the Fourth Proportional to 315,300,047.10, 435,318,803.19 and 282,202,980.54

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Solution

The fourth proportional to 315,300,047.10, 435,318,803.19 and 282,202,980.54 is: 389,623,359.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,300,047.10 : 435,318,803.19 = 282,202,980.54 : x
  2. Step 2: Convert to fraction form
    315,300,047.10/435,318,803.19 = 282,202,980.54/x
  3. Step 3: Cross multiply
    315,300,047.10x = 435,318,803.19 × 282,202,980.54
  4. Step 4: Simplify right side
    315,300,047.10x = 122,848,263,745,323,664
  5. Step 5: Solve for x
    x = 122,848,263,745,323,664/315,300,047.10
  6. Step 6: Final answer
    x = 389,623,359.96

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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.