Home / 21,065,256,700.55-31,593,049,804.94-12,559,046,376.82

Finding the Fourth Proportional to 21,065,256,700.55, 31,593,049,804.94 and 12,559,046,376.82

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Solution

The fourth proportional to 21,065,256,700.55, 31,593,049,804.94 and 12,559,046,376.82 is: 18,835,686,805.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065,256,700.55 : 31,593,049,804.94 = 12,559,046,376.82 : x
  2. Step 2: Convert to fraction form
    21,065,256,700.55/31,593,049,804.94 = 12,559,046,376.82/x
  3. Step 3: Cross multiply
    21,065,256,700.55x = 31,593,049,804.94 × 12,559,046,376.82
  4. Step 4: Simplify right side
    21,065,256,700.55x = 396,778,577,685,267,939,328
  5. Step 5: Solve for x
    x = 396,778,577,685,267,939,328/21,065,256,700.55
  6. Step 6: Final answer
    x = 18,835,686,805.32

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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.