Home / 525,120,199.40-787,680,299.10-253,022,407.40

Finding the Fourth Proportional to 525,120,199.40, 787,680,299.10 and 253,022,407.40

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Solution

The fourth proportional to 525,120,199.40, 787,680,299.10 and 253,022,407.40 is: 379,533,611.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,120,199.40 : 787,680,299.10 = 253,022,407.40 : x
  2. Step 2: Convert to fraction form
    525,120,199.40/787,680,299.10 = 253,022,407.40/x
  3. Step 3: Cross multiply
    525,120,199.40x = 787,680,299.10 × 253,022,407.40
  4. Step 4: Simplify right side
    525,120,199.40x = 199,300,765,539,834,080
  5. Step 5: Solve for x
    x = 199,300,765,539,834,080/525,120,199.40
  6. Step 6: Final answer
    x = 379,533,611.10

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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.