Home / 307,570,128.62-424,446,777.44-168,340,890.40

Finding the Fourth Proportional to 307,570,128.62, 424,446,777.44 and 168,340,890.40

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Solution

The fourth proportional to 307,570,128.62, 424,446,777.44 and 168,340,890.40 is: 232,310,428.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,570,128.62 : 424,446,777.44 = 168,340,890.40 : x
  2. Step 2: Convert to fraction form
    307,570,128.62/424,446,777.44 = 168,340,890.40/x
  3. Step 3: Cross multiply
    307,570,128.62x = 424,446,777.44 × 168,340,890.40
  4. Step 4: Simplify right side
    307,570,128.62x = 71,451,748,440,388,696
  5. Step 5: Solve for x
    x = 71,451,748,440,388,696/307,570,128.62
  6. Step 6: Final answer
    x = 232,310,428.72

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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.