Home / 77,309,139-106,683,893.46-42,501,576

Finding the Fourth Proportional to 77,309,139, 106,683,893.46 and 42,501,576

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Solution

The fourth proportional to 77,309,139, 106,683,893.46 and 42,501,576 is: 58,650,680.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,309,139 : 106,683,893.46 = 42,501,576 : x
  2. Step 2: Convert to fraction form
    77,309,139/106,683,893.46 = 42,501,576/x
  3. Step 3: Cross multiply
    77,309,139x = 106,683,893.46 × 42,501,576
  4. Step 4: Simplify right side
    77,309,139x = 4,534,233,605,866,093
  5. Step 5: Solve for x
    x = 4,534,233,605,866,093/77,309,139
  6. Step 6: Final answer
    x = 58,650,680.43

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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.