Home / 289,036,872.44-398,871,179.16-156,877,896.20

Finding the Fourth Proportional to 289,036,872.44, 398,871,179.16 and 156,877,896.20

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Solution

The fourth proportional to 289,036,872.44, 398,871,179.16 and 156,877,896.20 is: 216,491,656.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,036,872.44 : 398,871,179.16 = 156,877,896.20 : x
  2. Step 2: Convert to fraction form
    289,036,872.44/398,871,179.16 = 156,877,896.20/x
  3. Step 3: Cross multiply
    289,036,872.44x = 398,871,179.16 × 156,877,896.20
  4. Step 4: Simplify right side
    289,036,872.44x = 62,574,071,441,434,080
  5. Step 5: Solve for x
    x = 62,574,071,441,434,080/289,036,872.44
  6. Step 6: Final answer
    x = 216,491,656.98

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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.