Home / 525,289,220.13-724,914,539.76-287,147,563.77

Finding the Fourth Proportional to 525,289,220.13, 724,914,539.76 and 287,147,563.77

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Solution

The fourth proportional to 525,289,220.13, 724,914,539.76 and 287,147,563.77 is: 396,272,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,289,220.13 : 724,914,539.76 = 287,147,563.77 : x
  2. Step 2: Convert to fraction form
    525,289,220.13/724,914,539.76 = 287,147,563.77/x
  3. Step 3: Cross multiply
    525,289,220.13x = 724,914,539.76 × 287,147,563.77
  4. Step 4: Simplify right side
    525,289,220.13x = 208,157,444,033,534,784
  5. Step 5: Solve for x
    x = 208,157,444,033,534,784/525,289,220.13
  6. Step 6: Final answer
    x = 396,272,065.10

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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.