Home / 18,751,411.70-28,127,117.55-5,288,239.70

Finding the Fourth Proportional to 18,751,411.70, 28,127,117.55 and 5,288,239.70

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Solution

The fourth proportional to 18,751,411.70, 28,127,117.55 and 5,288,239.70 is: 7,932,359.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,751,411.70 : 28,127,117.55 = 5,288,239.70 : x
  2. Step 2: Convert to fraction form
    18,751,411.70/28,127,117.55 = 5,288,239.70/x
  3. Step 3: Cross multiply
    18,751,411.70x = 28,127,117.55 × 5,288,239.70
  4. Step 4: Simplify right side
    18,751,411.70x = 148,742,939,674,476.75
  5. Step 5: Solve for x
    x = 148,742,939,674,476.75/18,751,411.70
  6. Step 6: Final answer
    x = 7,932,359.55

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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.