Home / 47,990,553.60-71,985,830.40-21,064,209.60

Finding the Fourth Proportional to 47,990,553.60, 71,985,830.40 and 21,064,209.60

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Solution

The fourth proportional to 47,990,553.60, 71,985,830.40 and 21,064,209.60 is: 31,596,314.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,990,553.60 : 71,985,830.40 = 21,064,209.60 : x
  2. Step 2: Convert to fraction form
    47,990,553.60/71,985,830.40 = 21,064,209.60/x
  3. Step 3: Cross multiply
    47,990,553.60x = 71,985,830.40 × 21,064,209.60
  4. Step 4: Simplify right side
    47,990,553.60x = 1,516,324,619,775,652
  5. Step 5: Solve for x
    x = 1,516,324,619,775,652/47,990,553.60
  6. Step 6: Final answer
    x = 31,596,314.40

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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.