Home / 92,730,643.20-139,095,964.80-81,393,235.20

Finding the Fourth Proportional to 92,730,643.20, 139,095,964.80 and 81,393,235.20

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Solution

The fourth proportional to 92,730,643.20, 139,095,964.80 and 81,393,235.20 is: 122,089,852.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,730,643.20 : 139,095,964.80 = 81,393,235.20 : x
  2. Step 2: Convert to fraction form
    92,730,643.20/139,095,964.80 = 81,393,235.20/x
  3. Step 3: Cross multiply
    92,730,643.20x = 139,095,964.80 × 81,393,235.20
  4. Step 4: Simplify right side
    92,730,643.20x = 11,321,470,578,337,322
  5. Step 5: Solve for x
    x = 11,321,470,578,337,322/92,730,643.20
  6. Step 6: Final answer
    x = 122,089,852.80

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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.