Home / 478,336,325.32-660,104,123.79-258,319,751.32

Finding the Fourth Proportional to 478,336,325.32, 660,104,123.79 and 258,319,751.32

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Solution

The fourth proportional to 478,336,325.32, 660,104,123.79 and 258,319,751.32 is: 356,481,254.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,336,325.32 : 660,104,123.79 = 258,319,751.32 : x
  2. Step 2: Convert to fraction form
    478,336,325.32/660,104,123.79 = 258,319,751.32/x
  3. Step 3: Cross multiply
    478,336,325.32x = 660,104,123.79 × 258,319,751.32
  4. Step 4: Simplify right side
    478,336,325.32x = 170,517,933,102,739,296
  5. Step 5: Solve for x
    x = 170,517,933,102,739,296/478,336,325.32
  6. Step 6: Final answer
    x = 356,481,254.04

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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.