Home / 28,824,300-39,778,039.44-15,772,702.32

Finding the Fourth Proportional to 28,824,300, 39,778,039.44 and 15,772,702.32

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Solution

The fourth proportional to 28,824,300, 39,778,039.44 and 15,772,702.32 is: 21,766,605.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,824,300 : 39,778,039.44 = 15,772,702.32 : x
  2. Step 2: Convert to fraction form
    28,824,300/39,778,039.44 = 15,772,702.32/x
  3. Step 3: Cross multiply
    28,824,300x = 39,778,039.44 × 15,772,702.32
  4. Step 4: Simplify right side
    28,824,300x = 627,407,174,960,339.50
  5. Step 5: Solve for x
    x = 627,407,174,960,339.50/28,824,300
  6. Step 6: Final answer
    x = 21,766,605.78

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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.