Home / 130,107,631.71-179,546,855.37-74,352,412.86

Finding the Fourth Proportional to 130,107,631.71, 179,546,855.37 and 74,352,412.86

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Solution

The fourth proportional to 130,107,631.71, 179,546,855.37 and 74,352,412.86 is: 102,605,371.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,107,631.71 : 179,546,855.37 = 74,352,412.86 : x
  2. Step 2: Convert to fraction form
    130,107,631.71/179,546,855.37 = 74,352,412.86/x
  3. Step 3: Cross multiply
    130,107,631.71x = 179,546,855.37 × 74,352,412.86
  4. Step 4: Simplify right side
    130,107,631.71x = 13,349,741,918,184,948
  5. Step 5: Solve for x
    x = 13,349,741,918,184,948/130,107,631.71
  6. Step 6: Final answer
    x = 102,605,371.74

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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.