Home / 39,905,167.59-55,069,106.45-21,570,453.09

Finding the Fourth Proportional to 39,905,167.59, 55,069,106.45 and 21,570,453.09

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Solution

The fourth proportional to 39,905,167.59, 55,069,106.45 and 21,570,453.09 is: 29,767,211.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,905,167.59 : 55,069,106.45 = 21,570,453.09 : x
  2. Step 2: Convert to fraction form
    39,905,167.59/55,069,106.45 = 21,570,453.09/x
  3. Step 3: Cross multiply
    39,905,167.59x = 55,069,106.45 × 21,570,453.09
  4. Step 4: Simplify right side
    39,905,167.59x = 1,187,865,577,280,089.25
  5. Step 5: Solve for x
    x = 1,187,865,577,280,089.25/39,905,167.59
  6. Step 6: Final answer
    x = 29,767,211.84

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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.