Home / 525,900,865.12-725,737,812.94-290,953,207.11

Finding the Fourth Proportional to 525,900,865.12, 725,737,812.94 and 290,953,207.11

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Solution

The fourth proportional to 525,900,865.12, 725,737,812.94 and 290,953,207.11 is: 401,512,448.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,900,865.12 : 725,737,812.94 = 290,953,207.11 : x
  2. Step 2: Convert to fraction form
    525,900,865.12/725,737,812.94 = 290,953,207.11/x
  3. Step 3: Cross multiply
    525,900,865.12x = 725,737,812.94 × 290,953,207.11
  4. Step 4: Simplify right side
    525,900,865.12x = 211,155,744,193,759,520
  5. Step 5: Solve for x
    x = 211,155,744,193,759,520/525,900,865.12
  6. Step 6: Final answer
    x = 401,512,448.83

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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.