Home / 124,401,085.80-186,601,628.70-79,163,428.20

Finding the Fourth Proportional to 124,401,085.80, 186,601,628.70 and 79,163,428.20

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Solution

The fourth proportional to 124,401,085.80, 186,601,628.70 and 79,163,428.20 is: 118,745,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,401,085.80 : 186,601,628.70 = 79,163,428.20 : x
  2. Step 2: Convert to fraction form
    124,401,085.80/186,601,628.70 = 79,163,428.20/x
  3. Step 3: Cross multiply
    124,401,085.80x = 186,601,628.70 × 79,163,428.20
  4. Step 4: Simplify right side
    124,401,085.80x = 14,772,024,635,595,508
  5. Step 5: Solve for x
    x = 14,772,024,635,595,508/124,401,085.80
  6. Step 6: Final answer
    x = 118,745,142.30

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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.