Home / 30,835,129.76-46,258,534.38-12,392,507.78

Finding the Fourth Proportional to 30,835,129.76, 46,258,534.38 and 12,392,507.78

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Solution

The fourth proportional to 30,835,129.76, 46,258,534.38 and 12,392,507.78 is: 18,591,108.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,835,129.76 : 46,258,534.38 = 12,392,507.78 : x
  2. Step 2: Convert to fraction form
    30,835,129.76/46,258,534.38 = 12,392,507.78/x
  3. Step 3: Cross multiply
    30,835,129.76x = 46,258,534.38 × 12,392,507.78
  4. Step 4: Simplify right side
    30,835,129.76x = 573,259,247,195,547.50
  5. Step 5: Solve for x
    x = 573,259,247,195,547.50/30,835,129.76
  6. Step 6: Final answer
    x = 18,591,108.64

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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.