Home / 525,009,640.96-724,520,904.42-290,065,709.80

Finding the Fourth Proportional to 525,009,640.96, 724,520,904.42 and 290,065,709.80

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Solution

The fourth proportional to 525,009,640.96, 724,520,904.42 and 290,065,709.80 is: 400,294,878.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,009,640.96 : 724,520,904.42 = 290,065,709.80 : x
  2. Step 2: Convert to fraction form
    525,009,640.96/724,520,904.42 = 290,065,709.80/x
  3. Step 3: Cross multiply
    525,009,640.96x = 724,520,904.42 × 290,065,709.80
  4. Step 4: Simplify right side
    525,009,640.96x = 210,158,670,405,525,248
  5. Step 5: Solve for x
    x = 210,158,670,405,525,248/525,009,640.96
  6. Step 6: Final answer
    x = 400,294,878.44

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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.