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Finding the Fourth Proportional to 36,886,867.80, 55,363,762.80 and 18,703,712.40

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Solution

The fourth proportional to 36,886,867.80, 55,363,762.80 and 18,703,712.40 is: 28,072,535.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,886,867.80 : 55,363,762.80 = 18,703,712.40 : x
  2. Step 2: Convert to fraction form
    36,886,867.80/55,363,762.80 = 18,703,712.40/x
  3. Step 3: Cross multiply
    36,886,867.80x = 55,363,762.80 × 18,703,712.40
  4. Step 4: Simplify right side
    36,886,867.80x = 1,035,507,896,793,018.62
  5. Step 5: Solve for x
    x = 1,035,507,896,793,018.62/36,886,867.80
  6. Step 6: Final answer
    x = 28,072,535.26

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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.