Home / 21,065,256,921.96-31,593,050,135.98-12,559,046,598.19

Finding the Fourth Proportional to 21,065,256,921.96, 31,593,050,135.98 and 12,559,046,598.19

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Solution

The fourth proportional to 21,065,256,921.96, 31,593,050,135.98 and 12,559,046,598.19 is: 18,835,687,136.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065,256,921.96 : 31,593,050,135.98 = 12,559,046,598.19 : x
  2. Step 2: Convert to fraction form
    21,065,256,921.96/31,593,050,135.98 = 12,559,046,598.19/x
  3. Step 3: Cross multiply
    21,065,256,921.96x = 31,593,050,135.98 × 12,559,046,598.19
  4. Step 4: Simplify right side
    21,065,256,921.96x = 396,778,588,836,725,719,040
  5. Step 5: Solve for x
    x = 396,778,588,836,725,719,040/21,065,256,921.96
  6. Step 6: Final answer
    x = 18,835,687,136.72

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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.