Home / 209,142,683.04-288,596,683.44-121,019,102.40

Finding the Fourth Proportional to 209,142,683.04, 288,596,683.44 and 121,019,102.40

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Solution

The fourth proportional to 209,142,683.04, 288,596,683.44 and 121,019,102.40 is: 166,994,661.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,142,683.04 : 288,596,683.44 = 121,019,102.40 : x
  2. Step 2: Convert to fraction form
    209,142,683.04/288,596,683.44 = 121,019,102.40/x
  3. Step 3: Cross multiply
    209,142,683.04x = 288,596,683.44 × 121,019,102.40
  4. Step 4: Simplify right side
    209,142,683.04x = 34,925,711,585,525,744
  5. Step 5: Solve for x
    x = 34,925,711,585,525,744/209,142,683.04
  6. Step 6: Final answer
    x = 166,994,661.62

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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.