Home / 257,126,561.19-385,792,030.98-82,276,528.41

Finding the Fourth Proportional to 257,126,561.19, 385,792,030.98 and 82,276,528.41

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Solution

The fourth proportional to 257,126,561.19, 385,792,030.98 and 82,276,528.41 is: 123,447,491.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,126,561.19 : 385,792,030.98 = 82,276,528.41 : x
  2. Step 2: Convert to fraction form
    257,126,561.19/385,792,030.98 = 82,276,528.41/x
  3. Step 3: Cross multiply
    257,126,561.19x = 385,792,030.98 × 82,276,528.41
  4. Step 4: Simplify right side
    257,126,561.19x = 31,741,628,997,277,572
  5. Step 5: Solve for x
    x = 31,741,628,997,277,572/257,126,561.19
  6. Step 6: Final answer
    x = 123,447,491.58

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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.