Home / 525,703,511.60-788,555,267.40-389,654,615.60

Finding the Fourth Proportional to 525,703,511.60, 788,555,267.40 and 389,654,615.60

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Solution

The fourth proportional to 525,703,511.60, 788,555,267.40 and 389,654,615.60 is: 584,481,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,703,511.60 : 788,555,267.40 = 389,654,615.60 : x
  2. Step 2: Convert to fraction form
    525,703,511.60/788,555,267.40 = 389,654,615.60/x
  3. Step 3: Cross multiply
    525,703,511.60x = 788,555,267.40 × 389,654,615.60
  4. Step 4: Simplify right side
    525,703,511.60x = 307,264,199,598,102,208
  5. Step 5: Solve for x
    x = 307,264,199,598,102,208/525,703,511.60
  6. Step 6: Final answer
    x = 584,481,923.40

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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.