Home / 145,967,755.74-201,436,036.57-78,986,714.20

Finding the Fourth Proportional to 145,967,755.74, 201,436,036.57 and 78,986,714.20

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Solution

The fourth proportional to 145,967,755.74, 201,436,036.57 and 78,986,714.20 is: 109,001,954.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,967,755.74 : 201,436,036.57 = 78,986,714.20 : x
  2. Step 2: Convert to fraction form
    145,967,755.74/201,436,036.57 = 78,986,714.20/x
  3. Step 3: Cross multiply
    145,967,755.74x = 201,436,036.57 × 78,986,714.20
  4. Step 4: Simplify right side
    145,967,755.74x = 15,910,770,648,733,222
  5. Step 5: Solve for x
    x = 15,910,770,648,733,222/145,967,755.74
  6. Step 6: Final answer
    x = 109,001,954.36

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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.