Home / 18,675,266.40-28,018,148.40-9,090,957.60

Finding the Fourth Proportional to 18,675,266.40, 28,018,148.40 and 9,090,957.60

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Solution

The fourth proportional to 18,675,266.40, 28,018,148.40 and 9,090,957.60 is: 13,638,991.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675,266.40 : 28,018,148.40 = 9,090,957.60 : x
  2. Step 2: Convert to fraction form
    18,675,266.40/28,018,148.40 = 9,090,957.60/x
  3. Step 3: Cross multiply
    18,675,266.40x = 28,018,148.40 × 9,090,957.60
  4. Step 4: Simplify right side
    18,675,266.40x = 254,711,799,134,907.81
  5. Step 5: Solve for x
    x = 254,711,799,134,907.81/18,675,266.40
  6. Step 6: Final answer
    x = 13,638,991.47

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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.