Home / 309,191,785.60-426,689,964.48-169,968,415.36

Finding the Fourth Proportional to 309,191,785.60, 426,689,964.48 and 169,968,415.36

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Solution

The fourth proportional to 309,191,785.60, 426,689,964.48 and 169,968,415.36 is: 234,559,326.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,191,785.60 : 426,689,964.48 = 169,968,415.36 : x
  2. Step 2: Convert to fraction form
    309,191,785.60/426,689,964.48 = 169,968,415.36/x
  3. Step 3: Cross multiply
    309,191,785.60x = 426,689,964.48 × 169,968,415.36
  4. Step 4: Simplify right side
    309,191,785.60x = 72,523,817,112,680,288
  5. Step 5: Solve for x
    x = 72,523,817,112,680,288/309,191,785.60
  6. Step 6: Final answer
    x = 234,559,326.90

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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.