Home / 820,512,078.20-1,230,768,117.30-246,083,406.20

Finding the Fourth Proportional to 820,512,078.20, 1,230,768,117.30 and 246,083,406.20

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Solution

The fourth proportional to 820,512,078.20, 1,230,768,117.30 and 246,083,406.20 is: 369,125,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,512,078.20 : 1,230,768,117.30 = 246,083,406.20 : x
  2. Step 2: Convert to fraction form
    820,512,078.20/1,230,768,117.30 = 246,083,406.20/x
  3. Step 3: Cross multiply
    820,512,078.20x = 1,230,768,117.30 × 246,083,406.20
  4. Step 4: Simplify right side
    820,512,078.20x = 302,871,610,547,545,152
  5. Step 5: Solve for x
    x = 302,871,610,547,545,152/820,512,078.20
  6. Step 6: Final answer
    x = 369,125,109.30

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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.