Home / 19,778,729.76-29,666,945.54-5,945,389.78

Finding the Fourth Proportional to 19,778,729.76, 29,666,945.54 and 5,945,389.78

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Solution

The fourth proportional to 19,778,729.76, 29,666,945.54 and 5,945,389.78 is: 8,917,739.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,778,729.76 : 29,666,945.54 = 5,945,389.78 : x
  2. Step 2: Convert to fraction form
    19,778,729.76/29,666,945.54 = 5,945,389.78/x
  3. Step 3: Cross multiply
    19,778,729.76x = 29,666,945.54 × 5,945,389.78
  4. Step 4: Simplify right side
    19,778,729.76x = 176,381,554,817,332.59
  5. Step 5: Solve for x
    x = 176,381,554,817,332.59/19,778,729.76
  6. Step 6: Final answer
    x = 8,917,739.26

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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.