Home / 103,136,851.16-142,331,546.72-56,728,322.88

Finding the Fourth Proportional to 103,136,851.16, 142,331,546.72 and 56,728,322.88

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Solution

The fourth proportional to 103,136,851.16, 142,331,546.72 and 56,728,322.88 is: 78,286,566.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,136,851.16 : 142,331,546.72 = 56,728,322.88 : x
  2. Step 2: Convert to fraction form
    103,136,851.16/142,331,546.72 = 56,728,322.88/x
  3. Step 3: Cross multiply
    103,136,851.16x = 142,331,546.72 × 56,728,322.88
  4. Step 4: Simplify right side
    103,136,851.16x = 8,074,229,938,341,965
  5. Step 5: Solve for x
    x = 8,074,229,938,341,965/103,136,851.16
  6. Step 6: Final answer
    x = 78,286,566.32

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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.