Home / 30,341,487.50-45,512,275.06-12,390,591.50

Finding the Fourth Proportional to 30,341,487.50, 45,512,275.06 and 12,390,591.50

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Solution

The fourth proportional to 30,341,487.50, 45,512,275.06 and 12,390,591.50 is: 18,585,905.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,341,487.50 : 45,512,275.06 = 12,390,591.50 : x
  2. Step 2: Convert to fraction form
    30,341,487.50/45,512,275.06 = 12,390,591.50/x
  3. Step 3: Cross multiply
    30,341,487.50x = 45,512,275.06 × 12,390,591.50
  4. Step 4: Simplify right side
    30,341,487.50x = 563,924,008,504,098
  5. Step 5: Solve for x
    x = 563,924,008,504,098/30,341,487.50
  6. Step 6: Final answer
    x = 18,585,905.14

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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.