Home / 143,714,642.58-198,326,010.78-81,834,980.94

Finding the Fourth Proportional to 143,714,642.58, 198,326,010.78 and 81,834,980.94

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Solution

The fourth proportional to 143,714,642.58, 198,326,010.78 and 81,834,980.94 is: 112,932,162.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,714,642.58 : 198,326,010.78 = 81,834,980.94 : x
  2. Step 2: Convert to fraction form
    143,714,642.58/198,326,010.78 = 81,834,980.94/x
  3. Step 3: Cross multiply
    143,714,642.58x = 198,326,010.78 × 81,834,980.94
  4. Step 4: Simplify right side
    143,714,642.58x = 16,230,005,312,087,534
  5. Step 5: Solve for x
    x = 16,230,005,312,087,534/143,714,642.58
  6. Step 6: Final answer
    x = 112,932,162.10

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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.