Home / 21,861,763.20-30,168,460.80-12,072,038.40

Finding the Fourth Proportional to 21,861,763.20, 30,168,460.80 and 12,072,038.40

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Solution

The fourth proportional to 21,861,763.20, 30,168,460.80 and 12,072,038.40 is: 16,658,986.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,861,763.20 : 30,168,460.80 = 12,072,038.40 : x
  2. Step 2: Convert to fraction form
    21,861,763.20/30,168,460.80 = 12,072,038.40/x
  3. Step 3: Cross multiply
    21,861,763.20x = 30,168,460.80 × 12,072,038.40
  4. Step 4: Simplify right side
    21,861,763.20x = 364,194,817,246,494.75
  5. Step 5: Solve for x
    x = 364,194,817,246,494.75/21,861,763.20
  6. Step 6: Final answer
    x = 16,658,986.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.