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Finding the Third Proportional to 684,307,620 and 988,706,550

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Solution

The third proportional to 684,307,620 and 988,706,550 is: 1,428,510,531.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,307,620 : 988,706,550 = 988,706,550 : x
  2. Step 2: Convert to fraction form
    684,307,620/988,706,550 = 988,706,550/x
  3. Step 3: Cross multiply
    684,307,620x = 988,706,550 × 988,706,550
  4. Step 4: Simplify right side
    684,307,620x = 977,540,642,012,902,528
  5. Step 5: Solve for x
    x = 977,540,642,012,902,528/684,307,620
  6. Step 6: Final answer
    x = 1,428,510,531.58

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.