Home / 3,139,777.60-4,709,666.40-2,985,812.80

Finding the Fourth Proportional to 3,139,777.60, 4,709,666.40 and 2,985,812.80

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Solution

The fourth proportional to 3,139,777.60, 4,709,666.40 and 2,985,812.80 is: 4,478,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139,777.60 : 4,709,666.40 = 2,985,812.80 : x
  2. Step 2: Convert to fraction form
    3,139,777.60/4,709,666.40 = 2,985,812.80/x
  3. Step 3: Cross multiply
    3,139,777.60x = 4,709,666.40 × 2,985,812.80
  4. Step 4: Simplify right side
    3,139,777.60x = 14,062,182,220,849.92
  5. Step 5: Solve for x
    x = 14,062,182,220,849.92/3,139,777.60
  6. Step 6: Final answer
    x = 4,478,719.20

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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.