Home / 553,042,633.38-828,984,484.32-257,694,253.88

Finding the Fourth Proportional to 553,042,633.38, 828,984,484.32 and 257,694,253.88

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Solution

The fourth proportional to 553,042,633.38, 828,984,484.32 and 257,694,253.88 is: 386,271,374.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,042,633.38 : 828,984,484.32 = 257,694,253.88 : x
  2. Step 2: Convert to fraction form
    553,042,633.38/828,984,484.32 = 257,694,253.88/x
  3. Step 3: Cross multiply
    553,042,633.38x = 828,984,484.32 × 257,694,253.88
  4. Step 4: Simplify right side
    553,042,633.38x = 213,624,538,164,938,976
  5. Step 5: Solve for x
    x = 213,624,538,164,938,976/553,042,633.38
  6. Step 6: Final answer
    x = 386,271,374.52

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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.