Home / 139,974,416.80-209,961,625.20-105,486,301.60

Finding the Fourth Proportional to 139,974,416.80, 209,961,625.20 and 105,486,301.60

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Solution

The fourth proportional to 139,974,416.80, 209,961,625.20 and 105,486,301.60 is: 158,229,452.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,974,416.80 : 209,961,625.20 = 105,486,301.60 : x
  2. Step 2: Convert to fraction form
    139,974,416.80/209,961,625.20 = 105,486,301.60/x
  3. Step 3: Cross multiply
    139,974,416.80x = 209,961,625.20 × 105,486,301.60
  4. Step 4: Simplify right side
    139,974,416.80x = 22,148,075,320,273,356
  5. Step 5: Solve for x
    x = 22,148,075,320,273,356/139,974,416.80
  6. Step 6: Final answer
    x = 158,229,452.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.