Home / 28,191,728.10-42,287,592.15-19,688,672.10

Finding the Fourth Proportional to 28,191,728.10, 42,287,592.15 and 19,688,672.10

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Solution

The fourth proportional to 28,191,728.10, 42,287,592.15 and 19,688,672.10 is: 29,533,008.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191,728.10 : 42,287,592.15 = 19,688,672.10 : x
  2. Step 2: Convert to fraction form
    28,191,728.10/42,287,592.15 = 19,688,672.10/x
  3. Step 3: Cross multiply
    28,191,728.10x = 42,287,592.15 × 19,688,672.10
  4. Step 4: Simplify right side
    28,191,728.10x = 832,586,535,739,884
  5. Step 5: Solve for x
    x = 832,586,535,739,884/28,191,728.10
  6. Step 6: Final answer
    x = 29,533,008.15

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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.