Home / 13,411,533,394.08-18,507,082,166.82-7,389,701,810.82

Finding the Fourth Proportional to 13,411,533,394.08, 18,507,082,166.82 and 7,389,701,810.82

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Solution

The fourth proportional to 13,411,533,394.08, 18,507,082,166.82 and 7,389,701,810.82 is: 10,197,329,013.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411,533,394.08 : 18,507,082,166.82 = 7,389,701,810.82 : x
  2. Step 2: Convert to fraction form
    13,411,533,394.08/18,507,082,166.82 = 7,389,701,810.82/x
  3. Step 3: Cross multiply
    13,411,533,394.08x = 18,507,082,166.82 × 7,389,701,810.82
  4. Step 4: Simplify right side
    13,411,533,394.08x = 136,761,818,601,144,270,848
  5. Step 5: Solve for x
    x = 136,761,818,601,144,270,848/13,411,533,394.08
  6. Step 6: Final answer
    x = 10,197,329,013.96

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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.