Home / 145,088,628.68-200,222,320.18-79,009,107.19

Finding the Fourth Proportional to 145,088,628.68, 200,222,320.18 and 79,009,107.19

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Solution

The fourth proportional to 145,088,628.68, 200,222,320.18 and 79,009,107.19 is: 109,032,574.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,088,628.68 : 200,222,320.18 = 79,009,107.19 : x
  2. Step 2: Convert to fraction form
    145,088,628.68/200,222,320.18 = 79,009,107.19/x
  3. Step 3: Cross multiply
    145,088,628.68x = 200,222,320.18 × 79,009,107.19
  4. Step 4: Simplify right side
    145,088,628.68x = 15,819,386,756,932,120
  5. Step 5: Solve for x
    x = 15,819,386,756,932,120/145,088,628.68
  6. Step 6: Final answer
    x = 109,032,574.78

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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.