Home / 28,621,962,155.56-42,952,554,397.74-9,989,458,008.28

Finding the Fourth Proportional to 28,621,962,155.56, 42,952,554,397.74 and 9,989,458,008.28

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Solution

The fourth proportional to 28,621,962,155.56, 42,952,554,397.74 and 9,989,458,008.28 is: 14,991,031,578.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,621,962,155.56 : 42,952,554,397.74 = 9,989,458,008.28 : x
  2. Step 2: Convert to fraction form
    28,621,962,155.56/42,952,554,397.74 = 9,989,458,008.28/x
  3. Step 3: Cross multiply
    28,621,962,155.56x = 42,952,554,397.74 × 9,989,458,008.28
  4. Step 4: Simplify right side
    28,621,962,155.56x = 429,072,738,504,586,166,272
  5. Step 5: Solve for x
    x = 429,072,738,504,586,166,272/28,621,962,155.56
  6. Step 6: Final answer
    x = 14,991,031,578.22

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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.