Home / 13,553,710.81-18,704,121.02-7,442,139.31

Finding the Fourth Proportional to 13,553,710.81, 18,704,121.02 and 7,442,139.31

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Solution

The fourth proportional to 13,553,710.81, 18,704,121.02 and 7,442,139.31 is: 10,270,152.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553,710.81 : 18,704,121.02 = 7,442,139.31 : x
  2. Step 2: Convert to fraction form
    13,553,710.81/18,704,121.02 = 7,442,139.31/x
  3. Step 3: Cross multiply
    13,553,710.81x = 18,704,121.02 × 7,442,139.31
  4. Step 4: Simplify right side
    13,553,710.81x = 139,198,674,301,939.28
  5. Step 5: Solve for x
    x = 139,198,674,301,939.28/13,553,710.81
  6. Step 6: Final answer
    x = 10,270,152.30

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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.