Home / 20,372,984.17-28,122,031.02-12,113,026.66

Finding the Fourth Proportional to 20,372,984.17, 28,122,031.02 and 12,113,026.66

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Solution

The fourth proportional to 20,372,984.17, 28,122,031.02 and 12,113,026.66 is: 16,720,324.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372,984.17 : 28,122,031.02 = 12,113,026.66 : x
  2. Step 2: Convert to fraction form
    20,372,984.17/28,122,031.02 = 12,113,026.66/x
  3. Step 3: Cross multiply
    20,372,984.17x = 28,122,031.02 × 12,113,026.66
  4. Step 4: Simplify right side
    20,372,984.17x = 340,642,911,570,126.81
  5. Step 5: Solve for x
    x = 340,642,911,570,126.81/20,372,984.17
  6. Step 6: Final answer
    x = 16,720,324.75

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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.