Home / 148,051,243.80-204,317,100.18-81,971,740.08

Finding the Fourth Proportional to 148,051,243.80, 204,317,100.18 and 81,971,740.08

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Solution

The fourth proportional to 148,051,243.80, 204,317,100.18 and 81,971,740.08 is: 113,124,535.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,051,243.80 : 204,317,100.18 = 81,971,740.08 : x
  2. Step 2: Convert to fraction form
    148,051,243.80/204,317,100.18 = 81,971,740.08/x
  3. Step 3: Cross multiply
    148,051,243.80x = 204,317,100.18 × 81,971,740.08
  4. Step 4: Simplify right side
    148,051,243.80x = 16,748,228,229,854,282
  5. Step 5: Solve for x
    x = 16,748,228,229,854,282/148,051,243.80
  6. Step 6: Final answer
    x = 113,124,535.80

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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.