Home / 159,426,336.60-238,989,039.30-86,535,667.80

Finding the Fourth Proportional to 159,426,336.60, 238,989,039.30 and 86,535,667.80

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Solution

The fourth proportional to 159,426,336.60, 238,989,039.30 and 86,535,667.80 is: 129,721,829.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,426,336.60 : 238,989,039.30 = 86,535,667.80 : x
  2. Step 2: Convert to fraction form
    159,426,336.60/238,989,039.30 = 86,535,667.80/x
  3. Step 3: Cross multiply
    159,426,336.60x = 238,989,039.30 × 86,535,667.80
  4. Step 4: Simplify right side
    159,426,336.60x = 20,681,076,112,705,944
  5. Step 5: Solve for x
    x = 20,681,076,112,705,944/159,426,336.60
  6. Step 6: Final answer
    x = 129,721,829.87

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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.