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Finding the Fourth Proportional to 298,953,315.60, 448,429,973.40 and 250,485,896.40

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Solution

The fourth proportional to 298,953,315.60, 448,429,973.40 and 250,485,896.40 is: 375,728,844.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,953,315.60 : 448,429,973.40 = 250,485,896.40 : x
  2. Step 2: Convert to fraction form
    298,953,315.60/448,429,973.40 = 250,485,896.40/x
  3. Step 3: Cross multiply
    298,953,315.60x = 448,429,973.40 × 250,485,896.40
  4. Step 4: Simplify right side
    298,953,315.60x = 112,325,383,859,727,152
  5. Step 5: Solve for x
    x = 112,325,383,859,727,152/298,953,315.60
  6. Step 6: Final answer
    x = 375,728,844.60

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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.