Home / 13,665,004.80-18,856,896-7,553,068.80

Finding the Fourth Proportional to 13,665,004.80, 18,856,896 and 7,553,068.80

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Solution

The fourth proportional to 13,665,004.80, 18,856,896 and 7,553,068.80 is: 10,422,786.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,665,004.80 : 18,856,896 = 7,553,068.80 : x
  2. Step 2: Convert to fraction form
    13,665,004.80/18,856,896 = 7,553,068.80/x
  3. Step 3: Cross multiply
    13,665,004.80x = 18,856,896 × 7,553,068.80
  4. Step 4: Simplify right side
    13,665,004.80x = 142,427,432,842,444.78
  5. Step 5: Solve for x
    x = 142,427,432,842,444.78/13,665,004.80
  6. Step 6: Final answer
    x = 10,422,786.89

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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.