Home / 18,698,214.72-28,050,957.36-7,182,840

Finding the Fourth Proportional to 18,698,214.72, 28,050,957.36 and 7,182,840

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Solution

The fourth proportional to 18,698,214.72, 28,050,957.36 and 7,182,840 is: 10,775,656.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,698,214.72 : 28,050,957.36 = 7,182,840 : x
  2. Step 2: Convert to fraction form
    18,698,214.72/28,050,957.36 = 7,182,840/x
  3. Step 3: Cross multiply
    18,698,214.72x = 28,050,957.36 × 7,182,840
  4. Step 4: Simplify right side
    18,698,214.72x = 201,485,538,563,702.41
  5. Step 5: Solve for x
    x = 201,485,538,563,702.41/18,698,214.72
  6. Step 6: Final answer
    x = 10,775,656.48

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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.