Home / 1,376,902,632.20-2,065,963,858.86-721,697,947.88

Finding the Fourth Proportional to 1,376,902,632.20, 2,065,963,858.86 and 721,697,947.88

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Solution

The fourth proportional to 1,376,902,632.20, 2,065,963,858.86 and 721,697,947.88 is: 1,082,866,603.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,902,632.20 : 2,065,963,858.86 = 721,697,947.88 : x
  2. Step 2: Convert to fraction form
    1,376,902,632.20/2,065,963,858.86 = 721,697,947.88/x
  3. Step 3: Cross multiply
    1,376,902,632.20x = 2,065,963,858.86 × 721,697,947.88
  4. Step 4: Simplify right side
    1,376,902,632.20x = 1,491,001,877,333,507,840
  5. Step 5: Solve for x
    x = 1,491,001,877,333,507,840/1,376,902,632.20
  6. Step 6: Final answer
    x = 1,082,866,603.97

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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.