Home / 28,252,541.80-42,294,831.90-18,678,730.60

Finding the Fourth Proportional to 28,252,541.80, 42,294,831.90 and 18,678,730.60

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Solution

The fourth proportional to 28,252,541.80, 42,294,831.90 and 18,678,730.60 is: 27,962,573.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,252,541.80 : 42,294,831.90 = 18,678,730.60 : x
  2. Step 2: Convert to fraction form
    28,252,541.80/42,294,831.90 = 18,678,730.60/x
  3. Step 3: Cross multiply
    28,252,541.80x = 42,294,831.90 × 18,678,730.60
  4. Step 4: Simplify right side
    28,252,541.80x = 790,013,770,832,386.12
  5. Step 5: Solve for x
    x = 790,013,770,832,386.12/28,252,541.80
  6. Step 6: Final answer
    x = 27,962,573.29

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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.