Home / 28,724,004.15-39,639,080.34-15,671,264.22

Finding the Fourth Proportional to 28,724,004.15, 39,639,080.34 and 15,671,264.22

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Solution

The fourth proportional to 28,724,004.15, 39,639,080.34 and 15,671,264.22 is: 21,626,319.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,724,004.15 : 39,639,080.34 = 15,671,264.22 : x
  2. Step 2: Convert to fraction form
    28,724,004.15/39,639,080.34 = 15,671,264.22/x
  3. Step 3: Cross multiply
    28,724,004.15x = 39,639,080.34 × 15,671,264.22
  4. Step 4: Simplify right side
    28,724,004.15x = 621,194,501,445,947.50
  5. Step 5: Solve for x
    x = 621,194,501,445,947.50/28,724,004.15
  6. Step 6: Final answer
    x = 21,626,319.86

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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.