Home / 782,141,192.12-1,079,447,376.98-464,602,692.59

Finding the Fourth Proportional to 782,141,192.12, 1,079,447,376.98 and 464,602,692.59

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Solution

The fourth proportional to 782,141,192.12, 1,079,447,376.98 and 464,602,692.59 is: 641,206,680.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,141,192.12 : 1,079,447,376.98 = 464,602,692.59 : x
  2. Step 2: Convert to fraction form
    782,141,192.12/1,079,447,376.98 = 464,602,692.59/x
  3. Step 3: Cross multiply
    782,141,192.12x = 1,079,447,376.98 × 464,602,692.59
  4. Step 4: Simplify right side
    782,141,192.12x = 501,514,157,848,119,488
  5. Step 5: Solve for x
    x = 501,514,157,848,119,488/782,141,192.12
  6. Step 6: Final answer
    x = 641,206,680.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.