Home / 28,428,360-39,232,072.80-15,551,304

Finding the Fourth Proportional to 28,428,360, 39,232,072.80 and 15,551,304

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Solution

The fourth proportional to 28,428,360, 39,232,072.80 and 15,551,304 is: 21,461,311.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,428,360 : 39,232,072.80 = 15,551,304 : x
  2. Step 2: Convert to fraction form
    28,428,360/39,232,072.80 = 15,551,304/x
  3. Step 3: Cross multiply
    28,428,360x = 39,232,072.80 × 15,551,304
  4. Step 4: Simplify right side
    28,428,360x = 610,109,890,662,931.12
  5. Step 5: Solve for x
    x = 610,109,890,662,931.12/28,428,360
  6. Step 6: Final answer
    x = 21,461,311.54

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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.