Home / 28,491,206.30-42,736,809.45-12,305,875.40

Finding the Fourth Proportional to 28,491,206.30, 42,736,809.45 and 12,305,875.40

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Solution

The fourth proportional to 28,491,206.30, 42,736,809.45 and 12,305,875.40 is: 18,458,813.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,491,206.30 : 42,736,809.45 = 12,305,875.40 : x
  2. Step 2: Convert to fraction form
    28,491,206.30/42,736,809.45 = 12,305,875.40/x
  3. Step 3: Cross multiply
    28,491,206.30x = 42,736,809.45 × 12,305,875.40
  4. Step 4: Simplify right side
    28,491,206.30x = 525,913,852,085,242.56
  5. Step 5: Solve for x
    x = 525,913,852,085,242.56/28,491,206.30
  6. Step 6: Final answer
    x = 18,458,813.10

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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.