Home / 31,920,012.60-47,880,018.90-21,842,316.60

Finding the Fourth Proportional to 31,920,012.60, 47,880,018.90 and 21,842,316.60

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Solution

The fourth proportional to 31,920,012.60, 47,880,018.90 and 21,842,316.60 is: 32,763,474.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,920,012.60 : 47,880,018.90 = 21,842,316.60 : x
  2. Step 2: Convert to fraction form
    31,920,012.60/47,880,018.90 = 21,842,316.60/x
  3. Step 3: Cross multiply
    31,920,012.60x = 47,880,018.90 × 21,842,316.60
  4. Step 4: Simplify right side
    31,920,012.60x = 1,045,810,531,627,783.75
  5. Step 5: Solve for x
    x = 1,045,810,531,627,783.75/31,920,012.60
  6. Step 6: Final answer
    x = 32,763,474.90

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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.