Home / 101,666,556.63-140,357,462.19-77,779,242.21

Finding the Fourth Proportional to 101,666,556.63, 140,357,462.19 and 77,779,242.21

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Solution

The fourth proportional to 101,666,556.63, 140,357,462.19 and 77,779,242.21 is: 107,379,431.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,666,556.63 : 140,357,462.19 = 77,779,242.21 : x
  2. Step 2: Convert to fraction form
    101,666,556.63/140,357,462.19 = 77,779,242.21/x
  3. Step 3: Cross multiply
    101,666,556.63x = 140,357,462.19 × 77,779,242.21
  4. Step 4: Simplify right side
    101,666,556.63x = 10,916,897,047,656,926
  5. Step 5: Solve for x
    x = 10,916,897,047,656,926/101,666,556.63
  6. Step 6: Final answer
    x = 107,379,431.44

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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.