Home / 70,130,979.90-96,780,883.56-39,191,149.18

Finding the Fourth Proportional to 70,130,979.90, 96,780,883.56 and 39,191,149.18

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Solution

The fourth proportional to 70,130,979.90, 96,780,883.56 and 39,191,149.18 is: 54,083,859.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,130,979.90 : 96,780,883.56 = 39,191,149.18 : x
  2. Step 2: Convert to fraction form
    70,130,979.90/96,780,883.56 = 39,191,149.18/x
  3. Step 3: Cross multiply
    70,130,979.90x = 96,780,883.56 × 39,191,149.18
  4. Step 4: Simplify right side
    70,130,979.90x = 3,792,954,045,346,179
  5. Step 5: Solve for x
    x = 3,792,954,045,346,179/70,130,979.90
  6. Step 6: Final answer
    x = 54,083,859.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.