Home / 257,081,103.28-385,500,091.19-99,587,880.15

Finding the Fourth Proportional to 257,081,103.28, 385,500,091.19 and 99,587,880.15

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Solution

The fourth proportional to 257,081,103.28, 385,500,091.19 and 99,587,880.15 is: 149,334,728.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,081,103.28 : 385,500,091.19 = 99,587,880.15 : x
  2. Step 2: Convert to fraction form
    257,081,103.28/385,500,091.19 = 99,587,880.15/x
  3. Step 3: Cross multiply
    257,081,103.28x = 385,500,091.19 × 99,587,880.15
  4. Step 4: Simplify right side
    257,081,103.28x = 38,391,136,877,300,224
  5. Step 5: Solve for x
    x = 38,391,136,877,300,224/257,081,103.28
  6. Step 6: Final answer
    x = 149,334,728.95

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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.