Home / 12,137,681.19-18,193,805.37-5,655,411.51

Finding the Fourth Proportional to 12,137,681.19, 18,193,805.37 and 5,655,411.51

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Solution

The fourth proportional to 12,137,681.19, 18,193,805.37 and 5,655,411.51 is: 8,477,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137,681.19 : 18,193,805.37 = 5,655,411.51 : x
  2. Step 2: Convert to fraction form
    12,137,681.19/18,193,805.37 = 5,655,411.51/x
  3. Step 3: Cross multiply
    12,137,681.19x = 18,193,805.37 × 5,655,411.51
  4. Step 4: Simplify right side
    12,137,681.19x = 102,893,456,300,197.81
  5. Step 5: Solve for x
    x = 102,893,456,300,197.81/12,137,681.19
  6. Step 6: Final answer
    x = 8,477,192.20

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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.