Home / 13,411,533,753.60-18,507,082,661.20-7,389,702,169.72

Finding the Fourth Proportional to 13,411,533,753.60, 18,507,082,661.20 and 7,389,702,169.72

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Solution

The fourth proportional to 13,411,533,753.60, 18,507,082,661.20 and 7,389,702,169.72 is: 10,197,329,508.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411,533,753.60 : 18,507,082,661.20 = 7,389,702,169.72 : x
  2. Step 2: Convert to fraction form
    13,411,533,753.60/18,507,082,661.20 = 7,389,702,169.72/x
  3. Step 3: Cross multiply
    13,411,533,753.60x = 18,507,082,661.20 × 7,389,702,169.72
  4. Step 4: Simplify right side
    13,411,533,753.60x = 136,761,828,896,657,047,552
  5. Step 5: Solve for x
    x = 136,761,828,896,657,047,552/13,411,533,753.60
  6. Step 6: Final answer
    x = 10,197,329,508.26

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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.