Home / 213,421,317.26-294,407,807.85-129,815,019.14

Finding the Fourth Proportional to 213,421,317.26, 294,407,807.85 and 129,815,019.14

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Solution

The fourth proportional to 213,421,317.26, 294,407,807.85 and 129,815,019.14 is: 179,075,622.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,421,317.26 : 294,407,807.85 = 129,815,019.14 : x
  2. Step 2: Convert to fraction form
    213,421,317.26/294,407,807.85 = 129,815,019.14/x
  3. Step 3: Cross multiply
    213,421,317.26x = 294,407,807.85 × 129,815,019.14
  4. Step 4: Simplify right side
    213,421,317.26x = 38,218,555,209,541,160
  5. Step 5: Solve for x
    x = 38,218,555,209,541,160/213,421,317.26
  6. Step 6: Final answer
    x = 179,075,622.35

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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.