Home / 9,421,861,018.47-13,002,128,915.49-5,192,762,813.88

Finding the Fourth Proportional to 9,421,861,018.47, 13,002,128,915.49 and 5,192,762,813.88

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Solution

The fourth proportional to 9,421,861,018.47, 13,002,128,915.49 and 5,192,762,813.88 is: 7,165,991,028.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421,861,018.47 : 13,002,128,915.49 = 5,192,762,813.88 : x
  2. Step 2: Convert to fraction form
    9,421,861,018.47/13,002,128,915.49 = 5,192,762,813.88/x
  3. Step 3: Cross multiply
    9,421,861,018.47x = 13,002,128,915.49 × 5,192,762,813.88
  4. Step 4: Simplify right side
    9,421,861,018.47x = 67,516,971,533,630,365,696
  5. Step 5: Solve for x
    x = 67,516,971,533,630,365,696/9,421,861,018.47
  6. Step 6: Final answer
    x = 7,165,991,028.87

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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.