Home / 210,021,538.51-289,829,775.68-115,935,740.11

Finding the Fourth Proportional to 210,021,538.51, 289,829,775.68 and 115,935,740.11

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Solution

The fourth proportional to 210,021,538.51, 289,829,775.68 and 115,935,740.11 is: 159,991,350.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,021,538.51 : 289,829,775.68 = 115,935,740.11 : x
  2. Step 2: Convert to fraction form
    210,021,538.51/289,829,775.68 = 115,935,740.11/x
  3. Step 3: Cross multiply
    210,021,538.51x = 289,829,775.68 × 115,935,740.11
  4. Step 4: Simplify right side
    210,021,538.51x = 33,601,629,548,796,400
  5. Step 5: Solve for x
    x = 33,601,629,548,796,400/210,021,538.51
  6. Step 6: Final answer
    x = 159,991,350.35

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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.