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Finding the Fourth Proportional to 478,859,806.73, 660,826,241.00 and 258,843,232.73

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Solution

The fourth proportional to 478,859,806.73, 660,826,241.00 and 258,843,232.73 is: 357,203,503.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,859,806.73 : 660,826,241.00 = 258,843,232.73 : x
  2. Step 2: Convert to fraction form
    478,859,806.73/660,826,241.00 = 258,843,232.73/x
  3. Step 3: Cross multiply
    478,859,806.73x = 660,826,241.00 × 258,843,232.73
  4. Step 4: Simplify right side
    478,859,806.73x = 171,050,400,488,655,712
  5. Step 5: Solve for x
    x = 171,050,400,488,655,712/478,859,806.73
  6. Step 6: Final answer
    x = 357,203,503.17

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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.