Home / 474,491,984.40-711,845,298.18-256,137,639.72

Finding the Fourth Proportional to 474,491,984.40, 711,845,298.18 and 256,137,639.72

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Solution

The fourth proportional to 474,491,984.40, 711,845,298.18 and 256,137,639.72 is: 384,264,393.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,491,984.40 : 711,845,298.18 = 256,137,639.72 : x
  2. Step 2: Convert to fraction form
    474,491,984.40/711,845,298.18 = 256,137,639.72/x
  3. Step 3: Cross multiply
    474,491,984.40x = 711,845,298.18 × 256,137,639.72
  4. Step 4: Simplify right side
    474,491,984.40x = 182,330,374,521,604,800
  5. Step 5: Solve for x
    x = 182,330,374,521,604,800/474,491,984.40
  6. Step 6: Final answer
    x = 384,264,393.32

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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.