Home / 266,075,542.40-399,113,313.60-145,143,190.40

Finding the Fourth Proportional to 266,075,542.40, 399,113,313.60 and 145,143,190.40

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Solution

The fourth proportional to 266,075,542.40, 399,113,313.60 and 145,143,190.40 is: 217,714,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,075,542.40 : 399,113,313.60 = 145,143,190.40 : x
  2. Step 2: Convert to fraction form
    266,075,542.40/399,113,313.60 = 145,143,190.40/x
  3. Step 3: Cross multiply
    266,075,542.40x = 399,113,313.60 × 145,143,190.40
  4. Step 4: Simplify right side
    266,075,542.40x = 57,928,579,667,019,712
  5. Step 5: Solve for x
    x = 57,928,579,667,019,712/266,075,542.40
  6. Step 6: Final answer
    x = 217,714,785.60

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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.