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Finding the Fourth Proportional to 1,296,082,374, 1,788,023,704.32 and 759,960,387.36

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Solution

The fourth proportional to 1,296,082,374, 1,788,023,704.32 and 759,960,387.36 is: 1,048,411,130.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,082,374 : 1,788,023,704.32 = 759,960,387.36 : x
  2. Step 2: Convert to fraction form
    1,296,082,374/1,788,023,704.32 = 759,960,387.36/x
  3. Step 3: Cross multiply
    1,296,082,374x = 1,788,023,704.32 × 759,960,387.36
  4. Step 4: Simplify right side
    1,296,082,374x = 1,358,827,186,943,889,408
  5. Step 5: Solve for x
    x = 1,358,827,186,943,889,408/1,296,082,374
  6. Step 6: Final answer
    x = 1,048,411,130.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.