Home / 210,045,515.90-289,842,092.78-115,953,552.86

Finding the Fourth Proportional to 210,045,515.90, 289,842,092.78 and 115,953,552.86

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Solution

The fourth proportional to 210,045,515.90, 289,842,092.78 and 115,953,552.86 is: 160,004,465.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,045,515.90 : 289,842,092.78 = 115,953,552.86 : x
  2. Step 2: Convert to fraction form
    210,045,515.90/289,842,092.78 = 115,953,552.86/x
  3. Step 3: Cross multiply
    210,045,515.90x = 289,842,092.78 × 115,953,552.86
  4. Step 4: Simplify right side
    210,045,515.90x = 33,608,220,426,218,752
  5. Step 5: Solve for x
    x = 33,608,220,426,218,752/210,045,515.90
  6. Step 6: Final answer
    x = 160,004,465.14

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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.