Home / 287,912,559.90-431,881,130.45-113,073,485.28

Finding the Fourth Proportional to 287,912,559.90, 431,881,130.45 and 113,073,485.28

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Solution

The fourth proportional to 287,912,559.90, 431,881,130.45 and 113,073,485.28 is: 169,615,054.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,912,559.90 : 431,881,130.45 = 113,073,485.28 : x
  2. Step 2: Convert to fraction form
    287,912,559.90/431,881,130.45 = 113,073,485.28/x
  3. Step 3: Cross multiply
    287,912,559.90x = 431,881,130.45 × 113,073,485.28
  4. Step 4: Simplify right side
    287,912,559.90x = 48,834,304,646,647,832
  5. Step 5: Solve for x
    x = 48,834,304,646,647,832/287,912,559.90
  6. Step 6: Final answer
    x = 169,615,054.88

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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.