Home / 427,139,588.35-589,475,518.70-238,956,656.25

Finding the Fourth Proportional to 427,139,588.35, 589,475,518.70 and 238,956,656.25

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Solution

The fourth proportional to 427,139,588.35, 589,475,518.70 and 238,956,656.25 is: 329,772,989.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,139,588.35 : 589,475,518.70 = 238,956,656.25 : x
  2. Step 2: Convert to fraction form
    427,139,588.35/589,475,518.70 = 238,956,656.25/x
  3. Step 3: Cross multiply
    427,139,588.35x = 589,475,518.70 × 238,956,656.25
  4. Step 4: Simplify right side
    427,139,588.35x = 140,859,098,890,817,264
  5. Step 5: Solve for x
    x = 140,859,098,890,817,264/427,139,588.35
  6. Step 6: Final answer
    x = 329,772,989.28

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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.