Home / 127,170,010.80-190,779,899.40-54,386,650.80

Finding the Fourth Proportional to 127,170,010.80, 190,779,899.40 and 54,386,650.80

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Solution

The fourth proportional to 127,170,010.80, 190,779,899.40 and 54,386,650.80 is: 81,590,617.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,170,010.80 : 190,779,899.40 = 54,386,650.80 : x
  2. Step 2: Convert to fraction form
    127,170,010.80/190,779,899.40 = 54,386,650.80/x
  3. Step 3: Cross multiply
    127,170,010.80x = 190,779,899.40 × 54,386,650.80
  4. Step 4: Simplify right side
    127,170,010.80x = 10,375,879,768,326,930
  5. Step 5: Solve for x
    x = 10,375,879,768,326,930/127,170,010.80
  6. Step 6: Final answer
    x = 81,590,617.97

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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.