Home / 30,391,644.57-42,011,153.72-27,116,400.69

Finding the Fourth Proportional to 30,391,644.57, 42,011,153.72 and 27,116,400.69

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Solution

The fourth proportional to 30,391,644.57, 42,011,153.72 and 27,116,400.69 is: 37,483,699.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,391,644.57 : 42,011,153.72 = 27,116,400.69 : x
  2. Step 2: Convert to fraction form
    30,391,644.57/42,011,153.72 = 27,116,400.69/x
  3. Step 3: Cross multiply
    30,391,644.57x = 42,011,153.72 × 27,116,400.69
  4. Step 4: Simplify right side
    30,391,644.57x = 1,139,191,277,585,122.25
  5. Step 5: Solve for x
    x = 1,139,191,277,585,122.25/30,391,644.57
  6. Step 6: Final answer
    x = 37,483,699.67

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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.