Home / 28,109,264,999.70-42,162,412,513.02-9,220,064,515.19

Finding the Fourth Proportional to 28,109,264,999.70, 42,162,412,513.02 and 9,220,064,515.19

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Solution

The fourth proportional to 28,109,264,999.70, 42,162,412,513.02 and 9,220,064,515.19 is: 13,829,609,685.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,109,264,999.70 : 42,162,412,513.02 = 9,220,064,515.19 : x
  2. Step 2: Convert to fraction form
    28,109,264,999.70/42,162,412,513.02 = 9,220,064,515.19/x
  3. Step 3: Cross multiply
    28,109,264,999.70x = 42,162,412,513.02 × 9,220,064,515.19
  4. Step 4: Simplify right side
    28,109,264,999.70x = 388,740,163,485,887,692,800
  5. Step 5: Solve for x
    x = 388,740,163,485,887,692,800/28,109,264,999.70
  6. Step 6: Final answer
    x = 13,829,609,685.28

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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.