Home / 15,293,391,045.79-21,102,077,984.01-8,519,041,040.32

Finding the Fourth Proportional to 15,293,391,045.79, 21,102,077,984.01 and 8,519,041,040.32

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Solution

The fourth proportional to 15,293,391,045.79, 21,102,077,984.01 and 8,519,041,040.32 is: 11,754,715,997.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,293,391,045.79 : 21,102,077,984.01 = 8,519,041,040.32 : x
  2. Step 2: Convert to fraction form
    15,293,391,045.79/21,102,077,984.01 = 8,519,041,040.32/x
  3. Step 3: Cross multiply
    15,293,391,045.79x = 21,102,077,984.01 × 8,519,041,040.32
  4. Step 4: Simplify right side
    15,293,391,045.79x = 179,769,468,381,814,292,480
  5. Step 5: Solve for x
    x = 179,769,468,381,814,292,480/15,293,391,045.79
  6. Step 6: Final answer
    x = 11,754,715,997.49

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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.