Home / 276,216,308,378.28-381,174,482,034.90-154,282,777,871.40

Finding the Fourth Proportional to 276,216,308,378.28, 381,174,482,034.90 and 154,282,777,871.40

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Solution

The fourth proportional to 276,216,308,378.28, 381,174,482,034.90 and 154,282,777,871.40 is: 212,907,986,090.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,216,308,378.28 : 381,174,482,034.90 = 154,282,777,871.40 : x
  2. Step 2: Convert to fraction form
    276,216,308,378.28/381,174,482,034.90 = 154,282,777,871.40/x
  3. Step 3: Cross multiply
    276,216,308,378.28x = 381,174,482,034.90 × 154,282,777,871.40
  4. Step 4: Simplify right side
    276,216,308,378.28x = 58,808,657,942,036,428,619,776
  5. Step 5: Solve for x
    x = 58,808,657,942,036,428,619,776/276,216,308,378.28
  6. Step 6: Final answer
    x = 212,907,986,090.01

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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.