Home / 201,556,842.56-278,130,699.24-112,242,039.20

Finding the Fourth Proportional to 201,556,842.56, 278,130,699.24 and 112,242,039.20

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Solution

The fourth proportional to 201,556,842.56, 278,130,699.24 and 112,242,039.20 is: 154,884,133.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,556,842.56 : 278,130,699.24 = 112,242,039.20 : x
  2. Step 2: Convert to fraction form
    201,556,842.56/278,130,699.24 = 112,242,039.20/x
  3. Step 3: Cross multiply
    201,556,842.56x = 278,130,699.24 × 112,242,039.20
  4. Step 4: Simplify right side
    201,556,842.56x = 31,217,956,846,819,492
  5. Step 5: Solve for x
    x = 31,217,956,846,819,492/201,556,842.56
  6. Step 6: Final answer
    x = 154,884,133.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.