Home / 28,072,686.40-42,109,029.60-8,904,943.60

Finding the Fourth Proportional to 28,072,686.40, 42,109,029.60 and 8,904,943.60

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Solution

The fourth proportional to 28,072,686.40, 42,109,029.60 and 8,904,943.60 is: 13,357,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072,686.40 : 42,109,029.60 = 8,904,943.60 : x
  2. Step 2: Convert to fraction form
    28,072,686.40/42,109,029.60 = 8,904,943.60/x
  3. Step 3: Cross multiply
    28,072,686.40x = 42,109,029.60 × 8,904,943.60
  4. Step 4: Simplify right side
    28,072,686.40x = 374,978,533,638,730.56
  5. Step 5: Solve for x
    x = 374,978,533,638,730.56/28,072,686.40
  6. Step 6: Final answer
    x = 13,357,415.40

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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.