Home / 457,465,811.40-631,307,712.78-248,621,964.30

Finding the Fourth Proportional to 457,465,811.40, 631,307,712.78 and 248,621,964.30

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Solution

The fourth proportional to 457,465,811.40, 631,307,712.78 and 248,621,964.30 is: 343,100,969.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,465,811.40 : 631,307,712.78 = 248,621,964.30 : x
  2. Step 2: Convert to fraction form
    457,465,811.40/631,307,712.78 = 248,621,964.30/x
  3. Step 3: Cross multiply
    457,465,811.40x = 631,307,712.78 × 248,621,964.30
  4. Step 4: Simplify right side
    457,465,811.40x = 156,956,963,629,103,808
  5. Step 5: Solve for x
    x = 156,956,963,629,103,808/457,465,811.40
  6. Step 6: Final answer
    x = 343,100,969.99

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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.