Home / 90,044,784.34-135,080,628.80-28,635,946.42

Finding the Fourth Proportional to 90,044,784.34, 135,080,628.80 and 28,635,946.42

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Solution

The fourth proportional to 90,044,784.34, 135,080,628.80 and 28,635,946.42 is: 42,958,197.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,044,784.34 : 135,080,628.80 = 28,635,946.42 : x
  2. Step 2: Convert to fraction form
    90,044,784.34/135,080,628.80 = 28,635,946.42/x
  3. Step 3: Cross multiply
    90,044,784.34x = 135,080,628.80 × 28,635,946.42
  4. Step 4: Simplify right side
    90,044,784.34x = 3,868,161,648,696,709.50
  5. Step 5: Solve for x
    x = 3,868,161,648,696,709.50/90,044,784.34
  6. Step 6: Final answer
    x = 42,958,197.71

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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.