Home / 286,489,980.81-429,734,434.59-89,768,453.85

Finding the Fourth Proportional to 286,489,980.81, 429,734,434.59 and 89,768,453.85

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Solution

The fourth proportional to 286,489,980.81, 429,734,434.59 and 89,768,453.85 is: 134,652,512.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,489,980.81 : 429,734,434.59 = 89,768,453.85 : x
  2. Step 2: Convert to fraction form
    286,489,980.81/429,734,434.59 = 89,768,453.85/x
  3. Step 3: Cross multiply
    286,489,980.81x = 429,734,434.59 × 89,768,453.85
  4. Step 4: Simplify right side
    286,489,980.81x = 38,576,595,759,248,256
  5. Step 5: Solve for x
    x = 38,576,595,759,248,256/286,489,980.81
  6. Step 6: Final answer
    x = 134,652,512.63

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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.