Home / 28,724,178.12-39,639,309.49-15,671,445.67

Finding the Fourth Proportional to 28,724,178.12, 39,639,309.49 and 15,671,445.67

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Solution

The fourth proportional to 28,724,178.12, 39,639,309.49 and 15,671,445.67 is: 21,626,564.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,724,178.12 : 39,639,309.49 = 15,671,445.67 : x
  2. Step 2: Convert to fraction form
    28,724,178.12/39,639,309.49 = 15,671,445.67/x
  3. Step 3: Cross multiply
    28,724,178.12x = 39,639,309.49 × 15,671,445.67
  4. Step 4: Simplify right side
    28,724,178.12x = 621,205,285,068,850.50
  5. Step 5: Solve for x
    x = 621,205,285,068,850.50/28,724,178.12
  6. Step 6: Final answer
    x = 21,626,564.30

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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.