Home / 145,402,639.28-200,652,412.68-80,212,526

Finding the Fourth Proportional to 145,402,639.28, 200,652,412.68 and 80,212,526

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Solution

The fourth proportional to 145,402,639.28, 200,652,412.68 and 80,212,526 is: 110,691,504.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,402,639.28 : 200,652,412.68 = 80,212,526 : x
  2. Step 2: Convert to fraction form
    145,402,639.28/200,652,412.68 = 80,212,526/x
  3. Step 3: Cross multiply
    145,402,639.28x = 200,652,412.68 × 80,212,526
  4. Step 4: Simplify right side
    145,402,639.28x = 16,094,836,869,057,230
  5. Step 5: Solve for x
    x = 16,094,836,869,057,230/145,402,639.28
  6. Step 6: Final answer
    x = 110,691,504.29

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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.