Home / 553,042,624.61-828,984,471.21-257,694,245.12

Finding the Fourth Proportional to 553,042,624.61, 828,984,471.21 and 257,694,245.12

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Solution

The fourth proportional to 553,042,624.61, 828,984,471.21 and 257,694,245.12 is: 386,271,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,042,624.61 : 828,984,471.21 = 257,694,245.12 : x
  2. Step 2: Convert to fraction form
    553,042,624.61/828,984,471.21 = 257,694,245.12/x
  3. Step 3: Cross multiply
    553,042,624.61x = 828,984,471.21 × 257,694,245.12
  4. Step 4: Simplify right side
    553,042,624.61x = 213,624,527,520,518,432
  5. Step 5: Solve for x
    x = 213,624,527,520,518,432/553,042,624.61
  6. Step 6: Final answer
    x = 386,271,361.40

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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.