Home / 53,863,430.12-74,332,008.72-30,660,050.78

Finding the Fourth Proportional to 53,863,430.12, 74,332,008.72 and 30,660,050.78

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Solution

The fourth proportional to 53,863,430.12, 74,332,008.72 and 30,660,050.78 is: 42,311,140.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,863,430.12 : 74,332,008.72 = 30,660,050.78 : x
  2. Step 2: Convert to fraction form
    53,863,430.12/74,332,008.72 = 30,660,050.78/x
  3. Step 3: Cross multiply
    53,863,430.12x = 74,332,008.72 × 30,660,050.78
  4. Step 4: Simplify right side
    53,863,430.12x = 2,279,023,161,934,603
  5. Step 5: Solve for x
    x = 2,279,023,161,934,603/53,863,430.12
  6. Step 6: Final answer
    x = 42,311,140.54

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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.