Home / 1,376,902,105.47-2,065,963,068.77-721,697,419.53

Finding the Fourth Proportional to 1,376,902,105.47, 2,065,963,068.77 and 721,697,419.53

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Solution

The fourth proportional to 1,376,902,105.47, 2,065,963,068.77 and 721,697,419.53 is: 1,082,865,811.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,902,105.47 : 2,065,963,068.77 = 721,697,419.53 : x
  2. Step 2: Convert to fraction form
    1,376,902,105.47/2,065,963,068.77 = 721,697,419.53/x
  3. Step 3: Cross multiply
    1,376,902,105.47x = 2,065,963,068.77 × 721,697,419.53
  4. Step 4: Simplify right side
    1,376,902,105.47x = 1,491,000,215,571,980,544
  5. Step 5: Solve for x
    x = 1,491,000,215,571,980,544/1,376,902,105.47
  6. Step 6: Final answer
    x = 1,082,865,811.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.