Home / 30,805,438.14-42,509,887.98-16,864,120.56

Finding the Fourth Proportional to 30,805,438.14, 42,509,887.98 and 16,864,120.56

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Solution

The fourth proportional to 30,805,438.14, 42,509,887.98 and 16,864,120.56 is: 23,271,601.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,805,438.14 : 42,509,887.98 = 16,864,120.56 : x
  2. Step 2: Convert to fraction form
    30,805,438.14/42,509,887.98 = 16,864,120.56/x
  3. Step 3: Cross multiply
    30,805,438.14x = 42,509,887.98 × 16,864,120.56
  4. Step 4: Simplify right side
    30,805,438.14x = 716,891,875,886,814.75
  5. Step 5: Solve for x
    x = 716,891,875,886,814.75/30,805,438.14
  6. Step 6: Final answer
    x = 23,271,601.35

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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.