Home / 15,429,398.35-21,292,325.96-8,460,133.21

Finding the Fourth Proportional to 15,429,398.35, 21,292,325.96 and 8,460,133.21

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Solution

The fourth proportional to 15,429,398.35, 21,292,325.96 and 8,460,133.21 is: 11,674,850.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,429,398.35 : 21,292,325.96 = 8,460,133.21 : x
  2. Step 2: Convert to fraction form
    15,429,398.35/21,292,325.96 = 8,460,133.21/x
  3. Step 3: Cross multiply
    15,429,398.35x = 21,292,325.96 × 8,460,133.21
  4. Step 4: Simplify right side
    15,429,398.35x = 180,135,913,836,886.50
  5. Step 5: Solve for x
    x = 180,135,913,836,886.50/15,429,398.35
  6. Step 6: Final answer
    x = 11,674,850.16

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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.