Home / 103,686,646.20-155,529,969.30-87,058,447.80

Finding the Fourth Proportional to 103,686,646.20, 155,529,969.30 and 87,058,447.80

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Solution

The fourth proportional to 103,686,646.20, 155,529,969.30 and 87,058,447.80 is: 130,587,671.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,686,646.20 : 155,529,969.30 = 87,058,447.80 : x
  2. Step 2: Convert to fraction form
    103,686,646.20/155,529,969.30 = 87,058,447.80/x
  3. Step 3: Cross multiply
    103,686,646.20x = 155,529,969.30 × 87,058,447.80
  4. Step 4: Simplify right side
    103,686,646.20x = 13,540,197,713,639,654
  5. Step 5: Solve for x
    x = 13,540,197,713,639,654/103,686,646.20
  6. Step 6: Final answer
    x = 130,587,671.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.