Home / 90,907,885.37-136,361,829.84-21,820,688.92

Finding the Fourth Proportional to 90,907,885.37, 136,361,829.84 and 21,820,688.92

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Solution

The fourth proportional to 90,907,885.37, 136,361,829.84 and 21,820,688.92 is: 32,731,033.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,907,885.37 : 136,361,829.84 = 21,820,688.92 : x
  2. Step 2: Convert to fraction form
    90,907,885.37/136,361,829.84 = 21,820,688.92/x
  3. Step 3: Cross multiply
    90,907,885.37x = 136,361,829.84 × 21,820,688.92
  4. Step 4: Simplify right side
    90,907,885.37x = 2,975,509,069,742,637.50
  5. Step 5: Solve for x
    x = 2,975,509,069,742,637.50/90,907,885.37
  6. Step 6: Final answer
    x = 32,731,033.81

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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.