Home / 286,619,140.40-429,928,710.60-171,544,449.20

Finding the Fourth Proportional to 286,619,140.40, 429,928,710.60 and 171,544,449.20

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Solution

The fourth proportional to 286,619,140.40, 429,928,710.60 and 171,544,449.20 is: 257,316,673.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,619,140.40 : 429,928,710.60 = 171,544,449.20 : x
  2. Step 2: Convert to fraction form
    286,619,140.40/429,928,710.60 = 171,544,449.20/x
  3. Step 3: Cross multiply
    286,619,140.40x = 429,928,710.60 × 171,544,449.20
  4. Step 4: Simplify right side
    286,619,140.40x = 73,751,883,855,143,200
  5. Step 5: Solve for x
    x = 73,751,883,855,143,200/286,619,140.40
  6. Step 6: Final answer
    x = 257,316,673.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.