Home / 30,569,292.80-42,185,622.08-16,817,961.60

Finding the Fourth Proportional to 30,569,292.80, 42,185,622.08 and 16,817,961.60

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Solution

The fourth proportional to 30,569,292.80, 42,185,622.08 and 16,817,961.60 is: 23,208,785.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,569,292.80 : 42,185,622.08 = 16,817,961.60 : x
  2. Step 2: Convert to fraction form
    30,569,292.80/42,185,622.08 = 16,817,961.60/x
  3. Step 3: Cross multiply
    30,569,292.80x = 42,185,622.08 × 16,817,961.60
  4. Step 4: Simplify right side
    30,569,292.80x = 709,476,172,213,552.12
  5. Step 5: Solve for x
    x = 709,476,172,213,552.12/30,569,292.80
  6. Step 6: Final answer
    x = 23,208,785.92

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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.