Home / 148,051,216.80-204,317,062.88-81,971,713.06

Finding the Fourth Proportional to 148,051,216.80, 204,317,062.88 and 81,971,713.06

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Solution

The fourth proportional to 148,051,216.80, 204,317,062.88 and 81,971,713.06 is: 113,124,498.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,051,216.80 : 204,317,062.88 = 81,971,713.06 : x
  2. Step 2: Convert to fraction form
    148,051,216.80/204,317,062.88 = 81,971,713.06/x
  3. Step 3: Cross multiply
    148,051,216.80x = 204,317,062.88 × 81,971,713.06
  4. Step 4: Simplify right side
    148,051,216.80x = 16,748,219,650,740,686
  5. Step 5: Solve for x
    x = 16,748,219,650,740,686/148,051,216.80
  6. Step 6: Final answer
    x = 113,124,498.49

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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.