Home / 103,480,493.12-142,767,016.08-66,331,256.88

Finding the Fourth Proportional to 103,480,493.12, 142,767,016.08 and 66,331,256.88

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Solution

The fourth proportional to 103,480,493.12, 142,767,016.08 and 66,331,256.88 is: 91,514,017.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,480,493.12 : 142,767,016.08 = 66,331,256.88 : x
  2. Step 2: Convert to fraction form
    103,480,493.12/142,767,016.08 = 66,331,256.88/x
  3. Step 3: Cross multiply
    103,480,493.12x = 142,767,016.08 × 66,331,256.88
  4. Step 4: Simplify right side
    103,480,493.12x = 9,469,915,617,593,572
  5. Step 5: Solve for x
    x = 9,469,915,617,593,572/103,480,493.12
  6. Step 6: Final answer
    x = 91,514,017.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.