Home / 285,216,400.80-427,824,601.20-265,942,807.20

Finding the Fourth Proportional to 285,216,400.80, 427,824,601.20 and 265,942,807.20

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Solution

The fourth proportional to 285,216,400.80, 427,824,601.20 and 265,942,807.20 is: 398,914,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,216,400.80 : 427,824,601.20 = 265,942,807.20 : x
  2. Step 2: Convert to fraction form
    285,216,400.80/427,824,601.20 = 265,942,807.20/x
  3. Step 3: Cross multiply
    285,216,400.80x = 427,824,601.20 × 265,942,807.20
  4. Step 4: Simplify right side
    285,216,400.80x = 113,776,875,432,348,480
  5. Step 5: Solve for x
    x = 113,776,875,432,348,480/285,216,400.80
  6. Step 6: Final answer
    x = 398,914,210.80

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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.