Home / 38,423,442-53,024,768.64-21,019,413.54

Finding the Fourth Proportional to 38,423,442, 53,024,768.64 and 21,019,413.54

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Solution

The fourth proportional to 38,423,442, 53,024,768.64 and 21,019,413.54 is: 29,007,019.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,423,442 : 53,024,768.64 = 21,019,413.54 : x
  2. Step 2: Convert to fraction form
    38,423,442/53,024,768.64 = 21,019,413.54/x
  3. Step 3: Cross multiply
    38,423,442x = 53,024,768.64 × 21,019,413.54
  4. Step 4: Simplify right side
    38,423,442x = 1,114,549,539,906,983.38
  5. Step 5: Solve for x
    x = 1,114,549,539,906,983.38/38,423,442
  6. Step 6: Final answer
    x = 29,007,019.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.