Home / 13,210,434,147.12-18,230,402,098.72-7,269,986,649.12

Finding the Fourth Proportional to 13,210,434,147.12, 18,230,402,098.72 and 7,269,986,649.12

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Solution

The fourth proportional to 13,210,434,147.12, 18,230,402,098.72 and 7,269,986,649.12 is: 10,032,583,213.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210,434,147.12 : 18,230,402,098.72 = 7,269,986,649.12 : x
  2. Step 2: Convert to fraction form
    13,210,434,147.12/18,230,402,098.72 = 7,269,986,649.12/x
  3. Step 3: Cross multiply
    13,210,434,147.12x = 18,230,402,098.72 × 7,269,986,649.12
  4. Step 4: Simplify right side
    13,210,434,147.12x = 132,534,779,865,783,631,872
  5. Step 5: Solve for x
    x = 132,534,779,865,783,631,872/13,210,434,147.12
  6. Step 6: Final answer
    x = 10,032,583,213.37

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Double scale
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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.