Home / 18,900,904.90-28,332,694.95-9,308,431.30

Finding the Fourth Proportional to 18,900,904.90, 28,332,694.95 and 9,308,431.30

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Solution

The fourth proportional to 18,900,904.90, 28,332,694.95 and 9,308,431.30 is: 13,953,455.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900,904.90 : 28,332,694.95 = 9,308,431.30 : x
  2. Step 2: Convert to fraction form
    18,900,904.90/28,332,694.95 = 9,308,431.30/x
  3. Step 3: Cross multiply
    18,900,904.90x = 28,332,694.95 × 9,308,431.30
  4. Step 4: Simplify right side
    18,900,904.90x = 263,732,944,485,931.94
  5. Step 5: Solve for x
    x = 263,732,944,485,931.94/18,900,904.90
  6. Step 6: Final answer
    x = 13,953,455.98

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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.