Home / 5,130,420.80-7,690,555.20-2,429,999.60

Finding the Fourth Proportional to 5,130,420.80, 7,690,555.20 and 2,429,999.60

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Solution

The fourth proportional to 5,130,420.80, 7,690,555.20 and 2,429,999.60 is: 3,642,595.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130,420.80 : 7,690,555.20 = 2,429,999.60 : x
  2. Step 2: Convert to fraction form
    5,130,420.80/7,690,555.20 = 2,429,999.60/x
  3. Step 3: Cross multiply
    5,130,420.80x = 7,690,555.20 × 2,429,999.60
  4. Step 4: Simplify right side
    5,130,420.80x = 18,688,046,059,777.92
  5. Step 5: Solve for x
    x = 18,688,046,059,777.92/5,130,420.80
  6. Step 6: Final answer
    x = 3,642,595.18

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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.