Home / 120,042,369.01-165,607,742.93-80,362,683.93

Finding the Fourth Proportional to 120,042,369.01, 165,607,742.93 and 80,362,683.93

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Solution

The fourth proportional to 120,042,369.01, 165,607,742.93 and 80,362,683.93 is: 110,866,544.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,042,369.01 : 165,607,742.93 = 80,362,683.93 : x
  2. Step 2: Convert to fraction form
    120,042,369.01/165,607,742.93 = 80,362,683.93/x
  3. Step 3: Cross multiply
    120,042,369.01x = 165,607,742.93 × 80,362,683.93
  4. Step 4: Simplify right side
    120,042,369.01x = 13,308,682,701,642,784
  5. Step 5: Solve for x
    x = 13,308,682,701,642,784/120,042,369.01
  6. Step 6: Final answer
    x = 110,866,544.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.