Home / 680,128,718,346.63-1,020,336,357,585.80-220,627,509,435.54

Finding the Fourth Proportional to 680,128,718,346.63, 1,020,336,357,585.80 and 220,627,509,435.54

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Solution

The fourth proportional to 680,128,718,346.63, 1,020,336,357,585.80 and 220,627,509,435.54 is: 330,987,742,890.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,128,718,346.63 : 1,020,336,357,585.80 = 220,627,509,435.54 : x
  2. Step 2: Convert to fraction form
    680,128,718,346.63/1,020,336,357,585.80 = 220,627,509,435.54/x
  3. Step 3: Cross multiply
    680,128,718,346.63x = 1,020,336,357,585.80 × 220,627,509,435.54
  4. Step 4: Simplify right side
    680,128,718,346.63x = 225,114,269,360,685,620,133,888
  5. Step 5: Solve for x
    x = 225,114,269,360,685,620,133,888/680,128,718,346.63
  6. Step 6: Final answer
    x = 330,987,742,890.69

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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.