Home / 442,829,014.94-663,986,538.47-209,657,769.39

Finding the Fourth Proportional to 442,829,014.94, 663,986,538.47 and 209,657,769.39

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Solution

The fourth proportional to 442,829,014.94, 663,986,538.47 and 209,657,769.39 is: 314,364,984.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,829,014.94 : 663,986,538.47 = 209,657,769.39 : x
  2. Step 2: Convert to fraction form
    442,829,014.94/663,986,538.47 = 209,657,769.39/x
  3. Step 3: Cross multiply
    442,829,014.94x = 663,986,538.47 × 209,657,769.39
  4. Step 4: Simplify right side
    442,829,014.94x = 139,209,936,561,131,744
  5. Step 5: Solve for x
    x = 139,209,936,561,131,744/442,829,014.94
  6. Step 6: Final answer
    x = 314,364,984.82

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.