Home / 554,872,438.17-765,723,899.07-331,854,085.40

Finding the Fourth Proportional to 554,872,438.17, 765,723,899.07 and 331,854,085.40

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Solution

The fourth proportional to 554,872,438.17, 765,723,899.07 and 331,854,085.40 is: 457,958,598.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,872,438.17 : 765,723,899.07 = 331,854,085.40 : x
  2. Step 2: Convert to fraction form
    554,872,438.17/765,723,899.07 = 331,854,085.40/x
  3. Step 3: Cross multiply
    554,872,438.17x = 765,723,899.07 × 331,854,085.40
  4. Step 4: Simplify right side
    554,872,438.17x = 254,108,604,190,968,128
  5. Step 5: Solve for x
    x = 254,108,604,190,968,128/554,872,438.17
  6. Step 6: Final answer
    x = 457,958,598.61

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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.