Home / 30,616,810.18-45,930,865.83-12,667,313.86

Finding the Fourth Proportional to 30,616,810.18, 45,930,865.83 and 12,667,313.86

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Solution

The fourth proportional to 30,616,810.18, 45,930,865.83 and 12,667,313.86 is: 19,003,308.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,616,810.18 : 45,930,865.83 = 12,667,313.86 : x
  2. Step 2: Convert to fraction form
    30,616,810.18/45,930,865.83 = 12,667,313.86/x
  3. Step 3: Cross multiply
    30,616,810.18x = 45,930,865.83 × 12,667,313.86
  4. Step 4: Simplify right side
    30,616,810.18x = 581,820,693,330,159.38
  5. Step 5: Solve for x
    x = 581,820,693,330,159.38/30,616,810.18
  6. Step 6: Final answer
    x = 19,003,308.64

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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.