Home / 13,122,116.71-18,108,532.34-7,320,899.35

Finding the Fourth Proportional to 13,122,116.71, 18,108,532.34 and 7,320,899.35

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Solution

The fourth proportional to 13,122,116.71, 18,108,532.34 and 7,320,899.35 is: 10,102,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,116.71 : 18,108,532.34 = 7,320,899.35 : x
  2. Step 2: Convert to fraction form
    13,122,116.71/18,108,532.34 = 7,320,899.35/x
  3. Step 3: Cross multiply
    13,122,116.71x = 18,108,532.34 × 7,320,899.35
  4. Step 4: Simplify right side
    13,122,116.71x = 132,570,742,637,359.97
  5. Step 5: Solve for x
    x = 132,570,742,637,359.97/13,122,116.71
  6. Step 6: Final answer
    x = 10,102,847.40

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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.