Home / 287,713,829.20-431,074,732.20-134,044,711.60

Finding the Fourth Proportional to 287,713,829.20, 431,074,732.20 and 134,044,711.60

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Solution

The fourth proportional to 287,713,829.20, 431,074,732.20 and 134,044,711.60 is: 200,835,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,713,829.20 : 431,074,732.20 = 134,044,711.60 : x
  2. Step 2: Convert to fraction form
    287,713,829.20/431,074,732.20 = 134,044,711.60/x
  3. Step 3: Cross multiply
    287,713,829.20x = 431,074,732.20 × 134,044,711.60
  4. Step 4: Simplify right side
    287,713,829.20x = 57,783,288,155,796,232
  5. Step 5: Solve for x
    x = 57,783,288,155,796,232/287,713,829.20
  6. Step 6: Final answer
    x = 200,835,977.60

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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.