Home / 289,656,769.80-434,485,154.70-167,212,763.40

Finding the Fourth Proportional to 289,656,769.80, 434,485,154.70 and 167,212,763.40

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Solution

The fourth proportional to 289,656,769.80, 434,485,154.70 and 167,212,763.40 is: 250,819,145.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,656,769.80 : 434,485,154.70 = 167,212,763.40 : x
  2. Step 2: Convert to fraction form
    289,656,769.80/434,485,154.70 = 167,212,763.40/x
  3. Step 3: Cross multiply
    289,656,769.80x = 434,485,154.70 × 167,212,763.40
  4. Step 4: Simplify right side
    289,656,769.80x = 72,651,463,373,663,504
  5. Step 5: Solve for x
    x = 72,651,463,373,663,504/289,656,769.80
  6. Step 6: Final answer
    x = 250,819,145.10

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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.