Home / 18,705,689.69-25,813,607.93-10,445,897.12

Finding the Fourth Proportional to 18,705,689.69, 25,813,607.93 and 10,445,897.12

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Solution

The fourth proportional to 18,705,689.69, 25,813,607.93 and 10,445,897.12 is: 14,415,201.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,705,689.69 : 25,813,607.93 = 10,445,897.12 : x
  2. Step 2: Convert to fraction form
    18,705,689.69/25,813,607.93 = 10,445,897.12/x
  3. Step 3: Cross multiply
    18,705,689.69x = 25,813,607.93 × 10,445,897.12
  4. Step 4: Simplify right side
    18,705,689.69x = 269,646,292,590,670.78
  5. Step 5: Solve for x
    x = 269,646,292,590,670.78/18,705,689.69
  6. Step 6: Final answer
    x = 14,415,201.85

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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.