Home / 661,607,141.40-992,410,712.10-443,928,907.80

Finding the Fourth Proportional to 661,607,141.40, 992,410,712.10 and 443,928,907.80

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Solution

The fourth proportional to 661,607,141.40, 992,410,712.10 and 443,928,907.80 is: 665,893,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,607,141.40 : 992,410,712.10 = 443,928,907.80 : x
  2. Step 2: Convert to fraction form
    661,607,141.40/992,410,712.10 = 443,928,907.80/x
  3. Step 3: Cross multiply
    661,607,141.40x = 992,410,712.10 × 443,928,907.80
  4. Step 4: Simplify right side
    661,607,141.40x = 440,559,803,511,573,248
  5. Step 5: Solve for x
    x = 440,559,803,511,573,248/661,607,141.40
  6. Step 6: Final answer
    x = 665,893,361.70

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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.