Home / 13,411,533,369.45-18,507,082,130.94-7,389,701,785.56

Finding the Fourth Proportional to 13,411,533,369.45, 18,507,082,130.94 and 7,389,701,785.56

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Solution

The fourth proportional to 13,411,533,369.45, 18,507,082,130.94 and 7,389,701,785.56 is: 10,197,328,978.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411,533,369.45 : 18,507,082,130.94 = 7,389,701,785.56 : x
  2. Step 2: Convert to fraction form
    13,411,533,369.45/18,507,082,130.94 = 7,389,701,785.56/x
  3. Step 3: Cross multiply
    13,411,533,369.45x = 18,507,082,130.94 × 7,389,701,785.56
  4. Step 4: Simplify right side
    13,411,533,369.45x = 136,761,817,868,512,886,784
  5. Step 5: Solve for x
    x = 136,761,817,868,512,886,784/13,411,533,369.45
  6. Step 6: Final answer
    x = 10,197,328,978.06

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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.