Home / 12,409,331.40-18,615,746.70-3,888,779.40

Finding the Fourth Proportional to 12,409,331.40, 18,615,746.70 and 3,888,779.40

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Solution

The fourth proportional to 12,409,331.40, 18,615,746.70 and 3,888,779.40 is: 5,833,717.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,409,331.40 : 18,615,746.70 = 3,888,779.40 : x
  2. Step 2: Convert to fraction form
    12,409,331.40/18,615,746.70 = 3,888,779.40/x
  3. Step 3: Cross multiply
    12,409,331.40x = 18,615,746.70 × 3,888,779.40
  4. Step 4: Simplify right side
    12,409,331.40x = 72,392,532,282,577.97
  5. Step 5: Solve for x
    x = 72,392,532,282,577.97/12,409,331.40
  6. Step 6: Final answer
    x = 5,833,717.38

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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.