Home / 422,856,384.72-583,791,994.28-266,357,639.12

Finding the Fourth Proportional to 422,856,384.72, 583,791,994.28 and 266,357,639.12

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Solution

The fourth proportional to 422,856,384.72, 583,791,994.28 and 266,357,639.12 is: 367,731,132.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,856,384.72 : 583,791,994.28 = 266,357,639.12 : x
  2. Step 2: Convert to fraction form
    422,856,384.72/583,791,994.28 = 266,357,639.12/x
  3. Step 3: Cross multiply
    422,856,384.72x = 583,791,994.28 × 266,357,639.12
  4. Step 4: Simplify right side
    422,856,384.72x = 155,497,457,333,577,344
  5. Step 5: Solve for x
    x = 155,497,457,333,577,344/422,856,384.72
  6. Step 6: Final answer
    x = 367,731,132.73

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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.