Home / 105,185,983.15-157,778,972.30-28,509,009.85

Finding the Fourth Proportional to 105,185,983.15, 157,778,972.30 and 28,509,009.85

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Solution

The fourth proportional to 105,185,983.15, 157,778,972.30 and 28,509,009.85 is: 42,763,514.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,185,983.15 : 157,778,972.30 = 28,509,009.85 : x
  2. Step 2: Convert to fraction form
    105,185,983.15/157,778,972.30 = 28,509,009.85/x
  3. Step 3: Cross multiply
    105,185,983.15x = 157,778,972.30 × 28,509,009.85
  4. Step 4: Simplify right side
    105,185,983.15x = 4,498,122,275,423,577.50
  5. Step 5: Solve for x
    x = 4,498,122,275,423,577.50/105,185,983.15
  6. Step 6: Final answer
    x = 42,763,514.12

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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.