Home / 101,666,557.39-140,357,463.21-77,779,242.96

Finding the Fourth Proportional to 101,666,557.39, 140,357,463.21 and 77,779,242.96

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Solution

The fourth proportional to 101,666,557.39, 140,357,463.21 and 77,779,242.96 is: 107,379,432.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,666,557.39 : 140,357,463.21 = 77,779,242.96 : x
  2. Step 2: Convert to fraction form
    101,666,557.39/140,357,463.21 = 77,779,242.96/x
  3. Step 3: Cross multiply
    101,666,557.39x = 140,357,463.21 × 77,779,242.96
  4. Step 4: Simplify right side
    101,666,557.39x = 10,916,897,232,259,852
  5. Step 5: Solve for x
    x = 10,916,897,232,259,852/101,666,557.39
  6. Step 6: Final answer
    x = 107,379,432.46

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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.