Home / 30,340,013.80-45,510,020.70-10,145,255.80

Finding the Fourth Proportional to 30,340,013.80, 45,510,020.70 and 10,145,255.80

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Solution

The fourth proportional to 30,340,013.80, 45,510,020.70 and 10,145,255.80 is: 15,217,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,340,013.80 : 45,510,020.70 = 10,145,255.80 : x
  2. Step 2: Convert to fraction form
    30,340,013.80/45,510,020.70 = 10,145,255.80/x
  3. Step 3: Cross multiply
    30,340,013.80x = 45,510,020.70 × 10,145,255.80
  4. Step 4: Simplify right side
    30,340,013.80x = 461,710,801,464,795.12
  5. Step 5: Solve for x
    x = 461,710,801,464,795.12/30,340,013.80
  6. Step 6: Final answer
    x = 15,217,883.70

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1.5x scale

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.