Home / 12,290,470.40-18,435,705.60-7,507,501.40

Finding the Fourth Proportional to 12,290,470.40, 18,435,705.60 and 7,507,501.40

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Solution

The fourth proportional to 12,290,470.40, 18,435,705.60 and 7,507,501.40 is: 11,261,252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,470.40 : 18,435,705.60 = 7,507,501.40 : x
  2. Step 2: Convert to fraction form
    12,290,470.40/18,435,705.60 = 7,507,501.40/x
  3. Step 3: Cross multiply
    12,290,470.40x = 18,435,705.60 × 7,507,501.40
  4. Step 4: Simplify right side
    12,290,470.40x = 138,406,085,601,987.86
  5. Step 5: Solve for x
    x = 138,406,085,601,987.86/12,290,470.40
  6. Step 6: Final answer
    x = 11,261,252.10

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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.