Home / 165,989,361.20-249,054,900.60-79,683,342.80

Finding the Fourth Proportional to 165,989,361.20, 249,054,900.60 and 79,683,342.80

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Solution

The fourth proportional to 165,989,361.20, 249,054,900.60 and 79,683,342.80 is: 119,559,030.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,989,361.20 : 249,054,900.60 = 79,683,342.80 : x
  2. Step 2: Convert to fraction form
    165,989,361.20/249,054,900.60 = 79,683,342.80/x
  3. Step 3: Cross multiply
    165,989,361.20x = 249,054,900.60 × 79,683,342.80
  4. Step 4: Simplify right side
    165,989,361.20x = 19,845,527,020,529,724
  5. Step 5: Solve for x
    x = 19,845,527,020,529,724/165,989,361.20
  6. Step 6: Final answer
    x = 119,559,030.03

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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.