Home / 792,072,237.70-1,188,055,212.45-209,793,985.30

Finding the Fourth Proportional to 792,072,237.70, 1,188,055,212.45 and 209,793,985.30

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Solution

The fourth proportional to 792,072,237.70, 1,188,055,212.45 and 209,793,985.30 is: 314,676,901.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,072,237.70 : 1,188,055,212.45 = 209,793,985.30 : x
  2. Step 2: Convert to fraction form
    792,072,237.70/1,188,055,212.45 = 209,793,985.30/x
  3. Step 3: Cross multiply
    792,072,237.70x = 1,188,055,212.45 × 209,793,985.30
  4. Step 4: Simplify right side
    792,072,237.70x = 249,246,837,776,323,712
  5. Step 5: Solve for x
    x = 249,246,837,776,323,712/792,072,237.70
  6. Step 6: Final answer
    x = 314,676,901.82

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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.