Home / 78,899,434.80-118,265,171.40-30,358,532.40

Finding the Fourth Proportional to 78,899,434.80, 118,265,171.40 and 30,358,532.40

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Solution

The fourth proportional to 78,899,434.80, 118,265,171.40 and 30,358,532.40 is: 45,505,484.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,899,434.80 : 118,265,171.40 = 30,358,532.40 : x
  2. Step 2: Convert to fraction form
    78,899,434.80/118,265,171.40 = 30,358,532.40/x
  3. Step 3: Cross multiply
    78,899,434.80x = 118,265,171.40 × 30,358,532.40
  4. Step 4: Simplify right side
    78,899,434.80x = 3,590,357,037,738,453.50
  5. Step 5: Solve for x
    x = 3,590,357,037,738,453.50/78,899,434.80
  6. Step 6: Final answer
    x = 45,505,484.89

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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.