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Finding the Fourth Proportional to 13,210,291.40, 18,456,616.60 and 13,210,291.40

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Solution

The fourth proportional to 13,210,291.40, 18,456,616.60 and 13,210,291.40 is: 18,456,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210,291.40 : 18,456,616.60 = 13,210,291.40 : x
  2. Step 2: Convert to fraction form
    13,210,291.40/18,456,616.60 = 13,210,291.40/x
  3. Step 3: Cross multiply
    13,210,291.40x = 18,456,616.60 × 13,210,291.40
  4. Step 4: Simplify right side
    13,210,291.40x = 243,817,283,544,077.28
  5. Step 5: Solve for x
    x = 243,817,283,544,077.28/13,210,291.40
  6. Step 6: Final answer
    x = 18,456,616.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.