Home / 285,357,734.40-428,036,601.60-149,308,838.40

Finding the Fourth Proportional to 285,357,734.40, 428,036,601.60 and 149,308,838.40

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Solution

The fourth proportional to 285,357,734.40, 428,036,601.60 and 149,308,838.40 is: 223,963,257.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,357,734.40 : 428,036,601.60 = 149,308,838.40 : x
  2. Step 2: Convert to fraction form
    285,357,734.40/428,036,601.60 = 149,308,838.40/x
  3. Step 3: Cross multiply
    285,357,734.40x = 428,036,601.60 × 149,308,838.40
  4. Step 4: Simplify right side
    285,357,734.40x = 63,909,647,777,579,584
  5. Step 5: Solve for x
    x = 63,909,647,777,579,584/285,357,734.40
  6. Step 6: Final answer
    x = 223,963,257.60

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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.