Home / 782,890,512.48-1,174,793,693.76-291,942,954.72

Finding the Fourth Proportional to 782,890,512.48, 1,174,793,693.76 and 291,942,954.72

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Solution

The fourth proportional to 782,890,512.48, 1,174,793,693.76 and 291,942,954.72 is: 438,085,194.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,890,512.48 : 1,174,793,693.76 = 291,942,954.72 : x
  2. Step 2: Convert to fraction form
    782,890,512.48/1,174,793,693.76 = 291,942,954.72/x
  3. Step 3: Cross multiply
    782,890,512.48x = 1,174,793,693.76 × 291,942,954.72
  4. Step 4: Simplify right side
    782,890,512.48x = 342,972,742,142,717,248
  5. Step 5: Solve for x
    x = 342,972,742,142,717,248/782,890,512.48
  6. Step 6: Final answer
    x = 438,085,194.13

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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.