Home / 687,817,184.57-949,227,564.51-517,967,361.57

Finding the Fourth Proportional to 687,817,184.57, 949,227,564.51 and 517,967,361.57

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Solution

The fourth proportional to 687,817,184.57, 949,227,564.51 and 517,967,361.57 is: 714,824,968.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,817,184.57 : 949,227,564.51 = 517,967,361.57 : x
  2. Step 2: Convert to fraction form
    687,817,184.57/949,227,564.51 = 517,967,361.57/x
  3. Step 3: Cross multiply
    687,817,184.57x = 949,227,564.51 × 517,967,361.57
  4. Step 4: Simplify right side
    687,817,184.57x = 491,668,897,118,761,664
  5. Step 5: Solve for x
    x = 491,668,897,118,761,664/687,817,184.57
  6. Step 6: Final answer
    x = 714,824,968.25

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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.