Home / 28,076,619.40-42,114,929.10-19,856,998.60

Finding the Fourth Proportional to 28,076,619.40, 42,114,929.10 and 19,856,998.60

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Solution

The fourth proportional to 28,076,619.40, 42,114,929.10 and 19,856,998.60 is: 29,785,497.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076,619.40 : 42,114,929.10 = 19,856,998.60 : x
  2. Step 2: Convert to fraction form
    28,076,619.40/42,114,929.10 = 19,856,998.60/x
  3. Step 3: Cross multiply
    28,076,619.40x = 42,114,929.10 × 19,856,998.60
  4. Step 4: Simplify right side
    28,076,619.40x = 836,276,088,177,799.38
  5. Step 5: Solve for x
    x = 836,276,088,177,799.38/28,076,619.40
  6. Step 6: Final answer
    x = 29,785,497.90

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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.