Home / 13,545,030.81-18,686,821.82-7,740,698.79

Finding the Fourth Proportional to 13,545,030.81, 18,686,821.82 and 7,740,698.79

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Solution

The fourth proportional to 13,545,030.81, 18,686,821.82 and 7,740,698.79 is: 10,679,123.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545,030.81 : 18,686,821.82 = 7,740,698.79 : x
  2. Step 2: Convert to fraction form
    13,545,030.81/18,686,821.82 = 7,740,698.79/x
  3. Step 3: Cross multiply
    13,545,030.81x = 18,686,821.82 × 7,740,698.79
  4. Step 4: Simplify right side
    13,545,030.81x = 144,649,059,012,316.12
  5. Step 5: Solve for x
    x = 144,649,059,012,316.12/13,545,030.81
  6. Step 6: Final answer
    x = 10,679,123.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.