Home / 407,822,793,838.65-611,629,848,279.95-120,913,760,920.93

Finding the Fourth Proportional to 407,822,793,838.65, 611,629,848,279.95 and 120,913,760,920.93

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Solution

The fourth proportional to 407,822,793,838.65, 611,629,848,279.95 and 120,913,760,920.93 is: 181,339,705,294.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,822,793,838.65 : 611,629,848,279.95 = 120,913,760,920.93 : x
  2. Step 2: Convert to fraction form
    407,822,793,838.65/611,629,848,279.95 = 120,913,760,920.93/x
  3. Step 3: Cross multiply
    407,822,793,838.65x = 611,629,848,279.95 × 120,913,760,920.93
  4. Step 4: Simplify right side
    407,822,793,838.65x = 73,954,465,247,026,556,698,624
  5. Step 5: Solve for x
    x = 73,954,465,247,026,556,698,624/407,822,793,838.65
  6. Step 6: Final answer
    x = 181,339,705,294.37

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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.