Home / 30,985,385.60-46,478,078.40-13,979,273.60

Finding the Fourth Proportional to 30,985,385.60, 46,478,078.40 and 13,979,273.60

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Solution

The fourth proportional to 30,985,385.60, 46,478,078.40 and 13,979,273.60 is: 20,968,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,985,385.60 : 46,478,078.40 = 13,979,273.60 : x
  2. Step 2: Convert to fraction form
    30,985,385.60/46,478,078.40 = 13,979,273.60/x
  3. Step 3: Cross multiply
    30,985,385.60x = 46,478,078.40 × 13,979,273.60
  4. Step 4: Simplify right side
    30,985,385.60x = 649,729,774,355,850.25
  5. Step 5: Solve for x
    x = 649,729,774,355,850.25/30,985,385.60
  6. Step 6: Final answer
    x = 20,968,910.40

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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.