Home / 20,908,781.42-28,852,426.73-12,088,798.58

Finding the Fourth Proportional to 20,908,781.42, 28,852,426.73 and 12,088,798.58

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Solution

The fourth proportional to 20,908,781.42, 28,852,426.73 and 12,088,798.58 is: 16,681,563.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,908,781.42 : 28,852,426.73 = 12,088,798.58 : x
  2. Step 2: Convert to fraction form
    20,908,781.42/28,852,426.73 = 12,088,798.58/x
  3. Step 3: Cross multiply
    20,908,781.42x = 28,852,426.73 × 12,088,798.58
  4. Step 4: Simplify right side
    20,908,781.42x = 348,791,175,294,865.12
  5. Step 5: Solve for x
    x = 348,791,175,294,865.12/20,908,781.42
  6. Step 6: Final answer
    x = 16,681,563.99

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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.