Home / 472,392,003.80-708,588,005.70-442,158,915.80

Finding the Fourth Proportional to 472,392,003.80, 708,588,005.70 and 442,158,915.80

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Solution

The fourth proportional to 472,392,003.80, 708,588,005.70 and 442,158,915.80 is: 663,238,373.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,003.80 : 708,588,005.70 = 442,158,915.80 : x
  2. Step 2: Convert to fraction form
    472,392,003.80/708,588,005.70 = 442,158,915.80/x
  3. Step 3: Cross multiply
    472,392,003.80x = 708,588,005.70 × 442,158,915.80
  4. Step 4: Simplify right side
    472,392,003.80x = 313,308,504,349,196,224
  5. Step 5: Solve for x
    x = 313,308,504,349,196,224/472,392,003.80
  6. Step 6: Final answer
    x = 663,238,373.70

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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.