Home / 145,406,361.39-200,661,429.56-79,326,659.40

Finding the Fourth Proportional to 145,406,361.39, 200,661,429.56 and 79,326,659.40

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Solution

The fourth proportional to 145,406,361.39, 200,661,429.56 and 79,326,659.40 is: 109,471,145.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,406,361.39 : 200,661,429.56 = 79,326,659.40 : x
  2. Step 2: Convert to fraction form
    145,406,361.39/200,661,429.56 = 79,326,659.40/x
  3. Step 3: Cross multiply
    145,406,361.39x = 200,661,429.56 × 79,326,659.40
  4. Step 4: Simplify right side
    145,406,361.39x = 15,917,800,877,423,214
  5. Step 5: Solve for x
    x = 15,917,800,877,423,214/145,406,361.39
  6. Step 6: Final answer
    x = 109,471,145.04

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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.