Home / 1,376,902,631.20-2,065,963,857.36-721,697,946.88

Finding the Fourth Proportional to 1,376,902,631.20, 2,065,963,857.36 and 721,697,946.88

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Solution

The fourth proportional to 1,376,902,631.20, 2,065,963,857.36 and 721,697,946.88 is: 1,082,866,602.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,902,631.20 : 2,065,963,857.36 = 721,697,946.88 : x
  2. Step 2: Convert to fraction form
    1,376,902,631.20/2,065,963,857.36 = 721,697,946.88/x
  3. Step 3: Cross multiply
    1,376,902,631.20x = 2,065,963,857.36 × 721,697,946.88
  4. Step 4: Simplify right side
    1,376,902,631.20x = 1,491,001,874,184,997,120
  5. Step 5: Solve for x
    x = 1,491,001,874,184,997,120/1,376,902,631.20
  6. Step 6: Final answer
    x = 1,082,866,602.47

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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.