Home / 20,101,824.78-30,076,646.14-11,908,864.29

Finding the Fourth Proportional to 20,101,824.78, 30,076,646.14 and 11,908,864.29

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Solution

The fourth proportional to 20,101,824.78, 30,076,646.14 and 11,908,864.29 is: 17,818,218.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101,824.78 : 30,076,646.14 = 11,908,864.29 : x
  2. Step 2: Convert to fraction form
    20,101,824.78/30,076,646.14 = 11,908,864.29/x
  3. Step 3: Cross multiply
    20,101,824.78x = 30,076,646.14 × 11,908,864.29
  4. Step 4: Simplify right side
    20,101,824.78x = 358,178,697,179,612.31
  5. Step 5: Solve for x
    x = 358,178,697,179,612.31/20,101,824.78
  6. Step 6: Final answer
    x = 17,818,218.05

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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.