Home / 553,042,629.12-828,984,477.96-257,694,249.63

Finding the Fourth Proportional to 553,042,629.12, 828,984,477.96 and 257,694,249.63

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Solution

The fourth proportional to 553,042,629.12, 828,984,477.96 and 257,694,249.63 is: 386,271,368.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,042,629.12 : 828,984,477.96 = 257,694,249.63 : x
  2. Step 2: Convert to fraction form
    553,042,629.12/828,984,477.96 = 257,694,249.63/x
  3. Step 3: Cross multiply
    553,042,629.12x = 828,984,477.96 × 257,694,249.63
  4. Step 4: Simplify right side
    553,042,629.12x = 213,624,533,002,819,488
  5. Step 5: Solve for x
    x = 213,624,533,002,819,488/553,042,629.12
  6. Step 6: Final answer
    x = 386,271,368.16

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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.