Home / 618,477,472.21-852,697,809.63-400,580,851.63

Finding the Fourth Proportional to 618,477,472.21, 852,697,809.63 and 400,580,851.63

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Solution

The fourth proportional to 618,477,472.21, 852,697,809.63 and 400,580,851.63 is: 552,282,710.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,477,472.21 : 852,697,809.63 = 400,580,851.63 : x
  2. Step 2: Convert to fraction form
    618,477,472.21/852,697,809.63 = 400,580,851.63/x
  3. Step 3: Cross multiply
    618,477,472.21x = 852,697,809.63 × 400,580,851.63
  4. Step 4: Simplify right side
    618,477,472.21x = 341,574,414,764,620,992
  5. Step 5: Solve for x
    x = 341,574,414,764,620,992/618,477,472.21
  6. Step 6: Final answer
    x = 552,282,710.55

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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.