Home / 30,640,704.14-42,284,161.40-16,889,897.90

Finding the Fourth Proportional to 30,640,704.14, 42,284,161.40 and 16,889,897.90

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Solution

The fourth proportional to 30,640,704.14, 42,284,161.40 and 16,889,897.90 is: 23,308,053.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,640,704.14 : 42,284,161.40 = 16,889,897.90 : x
  2. Step 2: Convert to fraction form
    30,640,704.14/42,284,161.40 = 16,889,897.90/x
  3. Step 3: Cross multiply
    30,640,704.14x = 42,284,161.40 × 16,889,897.90
  4. Step 4: Simplify right side
    30,640,704.14x = 714,175,168,833,121
  5. Step 5: Solve for x
    x = 714,175,168,833,121/30,640,704.14
  6. Step 6: Final answer
    x = 23,308,053.42

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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.