Home / 1,423,964,034.78-2,136,559,865.12-768,784,975.98

Finding the Fourth Proportional to 1,423,964,034.78, 2,136,559,865.12 and 768,784,975.98

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Solution

The fourth proportional to 1,423,964,034.78, 2,136,559,865.12 and 768,784,975.98 is: 1,153,508,855.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,964,034.78 : 2,136,559,865.12 = 768,784,975.98 : x
  2. Step 2: Convert to fraction form
    1,423,964,034.78/2,136,559,865.12 = 768,784,975.98/x
  3. Step 3: Cross multiply
    1,423,964,034.78x = 2,136,559,865.12 × 768,784,975.98
  4. Step 4: Simplify right side
    1,423,964,034.78x = 1,642,555,124,586,111,232
  5. Step 5: Solve for x
    x = 1,642,555,124,586,111,232/1,423,964,034.78
  6. Step 6: Final answer
    x = 1,153,508,855.89

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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.