Home / 13,970,036.70-20,955,055.05-12,290,420.70

Finding the Fourth Proportional to 13,970,036.70, 20,955,055.05 and 12,290,420.70

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Solution

The fourth proportional to 13,970,036.70, 20,955,055.05 and 12,290,420.70 is: 18,435,631.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970,036.70 : 20,955,055.05 = 12,290,420.70 : x
  2. Step 2: Convert to fraction form
    13,970,036.70/20,955,055.05 = 12,290,420.70/x
  3. Step 3: Cross multiply
    13,970,036.70x = 20,955,055.05 × 12,290,420.70
  4. Step 4: Simplify right side
    13,970,036.70x = 257,546,442,356,159.53
  5. Step 5: Solve for x
    x = 257,546,442,356,159.53/13,970,036.70
  6. Step 6: Final answer
    x = 18,435,631.05

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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.