Home / 256,075,485.76-353,384,142.96-138,600,796.96

Finding the Fourth Proportional to 256,075,485.76, 353,384,142.96 and 138,600,796.96

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Solution

The fourth proportional to 256,075,485.76, 353,384,142.96 and 138,600,796.96 is: 191,269,084.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,075,485.76 : 353,384,142.96 = 138,600,796.96 : x
  2. Step 2: Convert to fraction form
    256,075,485.76/353,384,142.96 = 138,600,796.96/x
  3. Step 3: Cross multiply
    256,075,485.76x = 353,384,142.96 × 138,600,796.96
  4. Step 4: Simplify right side
    256,075,485.76x = 48,979,323,847,282,576
  5. Step 5: Solve for x
    x = 48,979,323,847,282,576/256,075,485.76
  6. Step 6: Final answer
    x = 191,269,084.98

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1.5x scale

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.