Home / 70,339,853.60-105,509,780.40-64,069,287.20

Finding the Fourth Proportional to 70,339,853.60, 105,509,780.40 and 64,069,287.20

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Solution

The fourth proportional to 70,339,853.60, 105,509,780.40 and 64,069,287.20 is: 96,103,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,339,853.60 : 105,509,780.40 = 64,069,287.20 : x
  2. Step 2: Convert to fraction form
    70,339,853.60/105,509,780.40 = 64,069,287.20/x
  3. Step 3: Cross multiply
    70,339,853.60x = 105,509,780.40 × 64,069,287.20
  4. Step 4: Simplify right side
    70,339,853.60x = 6,759,936,422,856,532
  5. Step 5: Solve for x
    x = 6,759,936,422,856,532/70,339,853.60
  6. Step 6: Final answer
    x = 96,103,930.80

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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.