Home / 4,985,661.60-7,478,492.40-1,620,208.80

Finding the Fourth Proportional to 4,985,661.60, 7,478,492.40 and 1,620,208.80

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Solution

The fourth proportional to 4,985,661.60, 7,478,492.40 and 1,620,208.80 is: 2,430,313.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985,661.60 : 7,478,492.40 = 1,620,208.80 : x
  2. Step 2: Convert to fraction form
    4,985,661.60/7,478,492.40 = 1,620,208.80/x
  3. Step 3: Cross multiply
    4,985,661.60x = 7,478,492.40 × 1,620,208.80
  4. Step 4: Simplify right side
    4,985,661.60x = 12,116,719,197,213.12
  5. Step 5: Solve for x
    x = 12,116,719,197,213.12/4,985,661.60
  6. Step 6: Final answer
    x = 2,430,313.20

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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.