Home / 278,066,881.80-417,100,322.70-155,622,875.40

Finding the Fourth Proportional to 278,066,881.80, 417,100,322.70 and 155,622,875.40

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Solution

The fourth proportional to 278,066,881.80, 417,100,322.70 and 155,622,875.40 is: 233,434,313.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,066,881.80 : 417,100,322.70 = 155,622,875.40 : x
  2. Step 2: Convert to fraction form
    278,066,881.80/417,100,322.70 = 155,622,875.40/x
  3. Step 3: Cross multiply
    278,066,881.80x = 417,100,322.70 × 155,622,875.40
  4. Step 4: Simplify right side
    278,066,881.80x = 64,910,351,548,841,896
  5. Step 5: Solve for x
    x = 64,910,351,548,841,896/278,066,881.80
  6. Step 6: Final answer
    x = 233,434,313.10

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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.