Home / 145,224,800.51-200,417,330.03-81,665,143.52

Finding the Fourth Proportional to 145,224,800.51, 200,417,330.03 and 81,665,143.52

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Solution

The fourth proportional to 145,224,800.51, 200,417,330.03 and 81,665,143.52 is: 112,701,893.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,224,800.51 : 200,417,330.03 = 81,665,143.52 : x
  2. Step 2: Convert to fraction form
    145,224,800.51/200,417,330.03 = 81,665,143.52/x
  3. Step 3: Cross multiply
    145,224,800.51x = 200,417,330.03 × 81,665,143.52
  4. Step 4: Simplify right side
    145,224,800.51x = 16,367,110,019,384,744
  5. Step 5: Solve for x
    x = 16,367,110,019,384,744/145,224,800.51
  6. Step 6: Final answer
    x = 112,701,893.63

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1.5x scale

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.