Home / 12,872,000.70-19,308,001.05-6,804,387.90

Finding the Fourth Proportional to 12,872,000.70, 19,308,001.05 and 6,804,387.90

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Solution

The fourth proportional to 12,872,000.70, 19,308,001.05 and 6,804,387.90 is: 10,206,581.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872,000.70 : 19,308,001.05 = 6,804,387.90 : x
  2. Step 2: Convert to fraction form
    12,872,000.70/19,308,001.05 = 6,804,387.90/x
  3. Step 3: Cross multiply
    12,872,000.70x = 19,308,001.05 × 6,804,387.90
  4. Step 4: Simplify right side
    12,872,000.70x = 131,379,128,717,807.31
  5. Step 5: Solve for x
    x = 131,379,128,717,807.31/12,872,000.70
  6. Step 6: Final answer
    x = 10,206,581.85

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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.