Home / 20,849,167.12-28,771,830.84-11,681,875.48

Finding the Fourth Proportional to 20,849,167.12, 28,771,830.84 and 11,681,875.48

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Solution

The fourth proportional to 20,849,167.12, 28,771,830.84 and 11,681,875.48 is: 16,120,977.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,849,167.12 : 28,771,830.84 = 11,681,875.48 : x
  2. Step 2: Convert to fraction form
    20,849,167.12/28,771,830.84 = 11,681,875.48/x
  3. Step 3: Cross multiply
    20,849,167.12x = 28,771,830.84 × 11,681,875.48
  4. Step 4: Simplify right side
    20,849,167.12x = 336,108,945,204,503.81
  5. Step 5: Solve for x
    x = 336,108,945,204,503.81/20,849,167.12
  6. Step 6: Final answer
    x = 16,120,977.08

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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.