Home / 28,762,603.60-43,143,905.40-20,731,939.60

Finding the Fourth Proportional to 28,762,603.60, 43,143,905.40 and 20,731,939.60

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Solution

The fourth proportional to 28,762,603.60, 43,143,905.40 and 20,731,939.60 is: 31,097,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,762,603.60 : 43,143,905.40 = 20,731,939.60 : x
  2. Step 2: Convert to fraction form
    28,762,603.60/43,143,905.40 = 20,731,939.60/x
  3. Step 3: Cross multiply
    28,762,603.60x = 43,143,905.40 × 20,731,939.60
  4. Step 4: Simplify right side
    28,762,603.60x = 894,456,840,860,913.88
  5. Step 5: Solve for x
    x = 894,456,840,860,913.88/28,762,603.60
  6. Step 6: Final answer
    x = 31,097,909.40

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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.