Home / 30,898,985.20-46,354,007.40-12,949,903.60

Finding the Fourth Proportional to 30,898,985.20, 46,354,007.40 and 12,949,903.60

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Solution

The fourth proportional to 30,898,985.20, 46,354,007.40 and 12,949,903.60 is: 19,427,172.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,898,985.20 : 46,354,007.40 = 12,949,903.60 : x
  2. Step 2: Convert to fraction form
    30,898,985.20/46,354,007.40 = 12,949,903.60/x
  3. Step 3: Cross multiply
    30,898,985.20x = 46,354,007.40 × 12,949,903.60
  4. Step 4: Simplify right side
    30,898,985.20x = 600,279,927,303,686.62
  5. Step 5: Solve for x
    x = 600,279,927,303,686.62/30,898,985.20
  6. Step 6: Final answer
    x = 19,427,172.88

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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.