Home / 12,785,422.02-19,178,001.77-7,390,639.77

Finding the Fourth Proportional to 12,785,422.02, 19,178,001.77 and 7,390,639.77

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Solution

The fourth proportional to 12,785,422.02, 19,178,001.77 and 7,390,639.77 is: 11,085,883.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785,422.02 : 19,178,001.77 = 7,390,639.77 : x
  2. Step 2: Convert to fraction form
    12,785,422.02/19,178,001.77 = 7,390,639.77/x
  3. Step 3: Cross multiply
    12,785,422.02x = 19,178,001.77 × 7,390,639.77
  4. Step 4: Simplify right side
    12,785,422.02x = 141,737,702,553,539.19
  5. Step 5: Solve for x
    x = 141,737,702,553,539.19/12,785,422.02
  6. Step 6: Final answer
    x = 11,085,883.78

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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.