Home / 30,985,385.10-46,478,077.65-13,979,273.10

Finding the Fourth Proportional to 30,985,385.10, 46,478,077.65 and 13,979,273.10

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Solution

The fourth proportional to 30,985,385.10, 46,478,077.65 and 13,979,273.10 is: 20,968,909.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,985,385.10 : 46,478,077.65 = 13,979,273.10 : x
  2. Step 2: Convert to fraction form
    30,985,385.10/46,478,077.65 = 13,979,273.10/x
  3. Step 3: Cross multiply
    30,985,385.10x = 46,478,077.65 × 13,979,273.10
  4. Step 4: Simplify right side
    30,985,385.10x = 649,729,740,632,356.12
  5. Step 5: Solve for x
    x = 649,729,740,632,356.12/30,985,385.10
  6. Step 6: Final answer
    x = 20,968,909.65

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Double scale
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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.