Home / 105,185,982.15-157,778,970.80-28,509,008.85

Finding the Fourth Proportional to 105,185,982.15, 157,778,970.80 and 28,509,008.85

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Solution

The fourth proportional to 105,185,982.15, 157,778,970.80 and 28,509,008.85 is: 42,763,512.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,185,982.15 : 157,778,970.80 = 28,509,008.85 : x
  2. Step 2: Convert to fraction form
    105,185,982.15/157,778,970.80 = 28,509,008.85/x
  3. Step 3: Cross multiply
    105,185,982.15x = 157,778,970.80 × 28,509,008.85
  4. Step 4: Simplify right side
    105,185,982.15x = 4,498,122,074,738,546.50
  5. Step 5: Solve for x
    x = 4,498,122,074,738,546.50/105,185,982.15
  6. Step 6: Final answer
    x = 42,763,512.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.