Home / 289,028,150.24-398,848,703.40-156,866,486.90

Finding the Fourth Proportional to 289,028,150.24, 398,848,703.40 and 156,866,486.90

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Solution

The fourth proportional to 289,028,150.24, 398,848,703.40 and 156,866,486.90 is: 216,470,246.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,028,150.24 : 398,848,703.40 = 156,866,486.90 : x
  2. Step 2: Convert to fraction form
    289,028,150.24/398,848,703.40 = 156,866,486.90/x
  3. Step 3: Cross multiply
    289,028,150.24x = 398,848,703.40 × 156,866,486.90
  4. Step 4: Simplify right side
    289,028,150.24x = 62,565,994,904,983,840
  5. Step 5: Solve for x
    x = 62,565,994,904,983,840/289,028,150.24
  6. Step 6: Final answer
    x = 216,470,246.42

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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.