Home / 1,328,608,271.70-1,992,912,407.55-408,365,036.10

Finding the Fourth Proportional to 1,328,608,271.70, 1,992,912,407.55 and 408,365,036.10

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Solution

The fourth proportional to 1,328,608,271.70, 1,992,912,407.55 and 408,365,036.10 is: 612,547,554.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,608,271.70 : 1,992,912,407.55 = 408,365,036.10 : x
  2. Step 2: Convert to fraction form
    1,328,608,271.70/1,992,912,407.55 = 408,365,036.10/x
  3. Step 3: Cross multiply
    1,328,608,271.70x = 1,992,912,407.55 × 408,365,036.10
  4. Step 4: Simplify right side
    1,328,608,271.70x = 813,835,747,253,293,696
  5. Step 5: Solve for x
    x = 813,835,747,253,293,696/1,328,608,271.70
  6. Step 6: Final answer
    x = 612,547,554.15

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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.