Home / 12,482,878.40-18,724,317.60-3,507,430.40

Finding the Fourth Proportional to 12,482,878.40, 18,724,317.60 and 3,507,430.40

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Solution

The fourth proportional to 12,482,878.40, 18,724,317.60 and 3,507,430.40 is: 5,261,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482,878.40 : 18,724,317.60 = 3,507,430.40 : x
  2. Step 2: Convert to fraction form
    12,482,878.40/18,724,317.60 = 3,507,430.40/x
  3. Step 3: Cross multiply
    12,482,878.40x = 18,724,317.60 × 3,507,430.40
  4. Step 4: Simplify right side
    12,482,878.40x = 65,674,240,769,495.05
  5. Step 5: Solve for x
    x = 65,674,240,769,495.05/12,482,878.40
  6. Step 6: Final answer
    x = 5,261,145.60

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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.