Home / 105,037,942.80-157,556,914.20-66,868,669.20

Finding the Fourth Proportional to 105,037,942.80, 157,556,914.20 and 66,868,669.20

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Solution

The fourth proportional to 105,037,942.80, 157,556,914.20 and 66,868,669.20 is: 100,303,003.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,037,942.80 : 157,556,914.20 = 66,868,669.20 : x
  2. Step 2: Convert to fraction form
    105,037,942.80/157,556,914.20 = 66,868,669.20/x
  3. Step 3: Cross multiply
    105,037,942.80x = 157,556,914.20 × 66,868,669.20
  4. Step 4: Simplify right side
    105,037,942.80x = 10,535,621,175,812,582
  5. Step 5: Solve for x
    x = 10,535,621,175,812,582/105,037,942.80
  6. Step 6: Final answer
    x = 100,303,003.80

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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.