Home / 145,402,642.28-200,652,417.04-80,212,529

Finding the Fourth Proportional to 145,402,642.28, 200,652,417.04 and 80,212,529

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Solution

The fourth proportional to 145,402,642.28, 200,652,417.04 and 80,212,529 is: 110,691,508.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,402,642.28 : 200,652,417.04 = 80,212,529 : x
  2. Step 2: Convert to fraction form
    145,402,642.28/200,652,417.04 = 80,212,529/x
  3. Step 3: Cross multiply
    145,402,642.28x = 200,652,417.04 × 80,212,529
  4. Step 4: Simplify right side
    145,402,642.28x = 16,094,837,820,741,094
  5. Step 5: Solve for x
    x = 16,094,837,820,741,094/145,402,642.28
  6. Step 6: Final answer
    x = 110,691,508.55

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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.