Home / 30,831,429.47-42,543,939.96-17,076,949.07

Finding the Fourth Proportional to 30,831,429.47, 42,543,939.96 and 17,076,949.07

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Solution

The fourth proportional to 30,831,429.47, 42,543,939.96 and 17,076,949.07 is: 23,564,288.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,831,429.47 : 42,543,939.96 = 17,076,949.07 : x
  2. Step 2: Convert to fraction form
    30,831,429.47/42,543,939.96 = 17,076,949.07/x
  3. Step 3: Cross multiply
    30,831,429.47x = 42,543,939.96 × 17,076,949.07
  4. Step 4: Simplify right side
    30,831,429.47x = 726,520,695,934,057.88
  5. Step 5: Solve for x
    x = 726,520,695,934,057.88/30,831,429.47
  6. Step 6: Final answer
    x = 23,564,288.40

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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.