Home / 12,936,007.80-19,404,011.70-7,897,159.80

Finding the Fourth Proportional to 12,936,007.80, 19,404,011.70 and 7,897,159.80

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Solution

The fourth proportional to 12,936,007.80, 19,404,011.70 and 7,897,159.80 is: 11,845,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,936,007.80 : 19,404,011.70 = 7,897,159.80 : x
  2. Step 2: Convert to fraction form
    12,936,007.80/19,404,011.70 = 7,897,159.80/x
  3. Step 3: Cross multiply
    12,936,007.80x = 19,404,011.70 × 7,897,159.80
  4. Step 4: Simplify right side
    12,936,007.80x = 153,236,581,155,969.66
  5. Step 5: Solve for x
    x = 153,236,581,155,969.66/12,936,007.80
  6. Step 6: Final answer
    x = 11,845,739.70

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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.