Home / 77,485,808.34-106,930,412.19-42,678,499.74

Finding the Fourth Proportional to 77,485,808.34, 106,930,412.19 and 42,678,499.74

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Solution

The fourth proportional to 77,485,808.34, 106,930,412.19 and 42,678,499.74 is: 58,896,327.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,485,808.34 : 106,930,412.19 = 42,678,499.74 : x
  2. Step 2: Convert to fraction form
    77,485,808.34/106,930,412.19 = 42,678,499.74/x
  3. Step 3: Cross multiply
    77,485,808.34x = 106,930,412.19 × 42,678,499.74
  4. Step 4: Simplify right side
    77,485,808.34x = 4,563,629,568,849,008
  5. Step 5: Solve for x
    x = 4,563,629,568,849,008/77,485,808.34
  6. Step 6: Final answer
    x = 58,896,327.81

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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.