Home / 496,851,390.76-685,657,730.10-288,131,459.08

Finding the Fourth Proportional to 496,851,390.76, 685,657,730.10 and 288,131,459.08

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Solution

The fourth proportional to 496,851,390.76, 685,657,730.10 and 288,131,459.08 is: 397,623,043.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,851,390.76 : 685,657,730.10 = 288,131,459.08 : x
  2. Step 2: Convert to fraction form
    496,851,390.76/685,657,730.10 = 288,131,459.08/x
  3. Step 3: Cross multiply
    496,851,390.76x = 685,657,730.10 × 288,131,459.08
  4. Step 4: Simplify right side
    496,851,390.76x = 197,559,562,203,193,824
  5. Step 5: Solve for x
    x = 197,559,562,203,193,824/496,851,390.76
  6. Step 6: Final answer
    x = 397,623,043.58

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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.