Home / 830,147,340.30-1,145,610,952.32-472,909,822.52

Finding the Fourth Proportional to 830,147,340.30, 1,145,610,952.32 and 472,909,822.52

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Solution

The fourth proportional to 830,147,340.30, 1,145,610,952.32 and 472,909,822.52 is: 652,619,897.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,147,340.30 : 1,145,610,952.32 = 472,909,822.52 : x
  2. Step 2: Convert to fraction form
    830,147,340.30/1,145,610,952.32 = 472,909,822.52/x
  3. Step 3: Cross multiply
    830,147,340.30x = 1,145,610,952.32 × 472,909,822.52
  4. Step 4: Simplify right side
    830,147,340.30x = 541,770,672,138,619,328
  5. Step 5: Solve for x
    x = 541,770,672,138,619,328/830,147,340.30
  6. Step 6: Final answer
    x = 652,619,897.50

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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.