Home / 679,945,876.43-1,020,126,964.17-348,187,783.40

Finding the Fourth Proportional to 679,945,876.43, 1,020,126,964.17 and 348,187,783.40

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Solution

The fourth proportional to 679,945,876.43, 1,020,126,964.17 and 348,187,783.40 is: 522,388,264.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,945,876.43 : 1,020,126,964.17 = 348,187,783.40 : x
  2. Step 2: Convert to fraction form
    679,945,876.43/1,020,126,964.17 = 348,187,783.40/x
  3. Step 3: Cross multiply
    679,945,876.43x = 1,020,126,964.17 × 348,187,783.40
  4. Step 4: Simplify right side
    679,945,876.43x = 355,195,746,435,822,848
  5. Step 5: Solve for x
    x = 355,195,746,435,822,848/679,945,876.43
  6. Step 6: Final answer
    x = 522,388,264.64

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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.