Home / 28,008,004.30-42,012,006.45-16,642,602.70

Finding the Fourth Proportional to 28,008,004.30, 42,012,006.45 and 16,642,602.70

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Solution

The fourth proportional to 28,008,004.30, 42,012,006.45 and 16,642,602.70 is: 24,963,904.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008,004.30 : 42,012,006.45 = 16,642,602.70 : x
  2. Step 2: Convert to fraction form
    28,008,004.30/42,012,006.45 = 16,642,602.70/x
  3. Step 3: Cross multiply
    28,008,004.30x = 42,012,006.45 × 16,642,602.70
  4. Step 4: Simplify right side
    28,008,004.30x = 699,189,131,977,187.38
  5. Step 5: Solve for x
    x = 699,189,131,977,187.38/28,008,004.30
  6. Step 6: Final answer
    x = 24,963,904.05

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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.