Home / 213,421,308.27-294,407,795.44-129,815,010.15

Finding the Fourth Proportional to 213,421,308.27, 294,407,795.44 and 129,815,010.15

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Solution

The fourth proportional to 213,421,308.27, 294,407,795.44 and 129,815,010.15 is: 179,075,609.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,421,308.27 : 294,407,795.44 = 129,815,010.15 : x
  2. Step 2: Convert to fraction form
    213,421,308.27/294,407,795.44 = 129,815,010.15/x
  3. Step 3: Cross multiply
    213,421,308.27x = 294,407,795.44 × 129,815,010.15
  4. Step 4: Simplify right side
    213,421,308.27x = 38,218,550,952,339,664
  5. Step 5: Solve for x
    x = 38,218,550,952,339,664/213,421,308.27
  6. Step 6: Final answer
    x = 179,075,609.94

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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.