Home / 210,006,751.30-289,809,332.76-115,920,920.53

Finding the Fourth Proportional to 210,006,751.30, 289,809,332.76 and 115,920,920.53

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Solution

The fourth proportional to 210,006,751.30, 289,809,332.76 and 115,920,920.53 is: 159,970,879.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,006,751.30 : 289,809,332.76 = 115,920,920.53 : x
  2. Step 2: Convert to fraction form
    210,006,751.30/289,809,332.76 = 115,920,920.53/x
  3. Step 3: Cross multiply
    210,006,751.30x = 289,809,332.76 × 115,920,920.53
  4. Step 4: Simplify right side
    210,006,751.30x = 33,594,964,631,724,284
  5. Step 5: Solve for x
    x = 33,594,964,631,724,284/210,006,751.30
  6. Step 6: Final answer
    x = 159,970,879.14

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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.