Home / 1,296,510,158.98-1,788,514,487.10-878,679,551.62

Finding the Fourth Proportional to 1,296,510,158.98, 1,788,514,487.10 and 878,679,551.62

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Solution

The fourth proportional to 1,296,510,158.98, 1,788,514,487.10 and 878,679,551.62 is: 1,212,124,021.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,510,158.98 : 1,788,514,487.10 = 878,679,551.62 : x
  2. Step 2: Convert to fraction form
    1,296,510,158.98/1,788,514,487.10 = 878,679,551.62/x
  3. Step 3: Cross multiply
    1,296,510,158.98x = 1,788,514,487.10 × 878,679,551.62
  4. Step 4: Simplify right side
    1,296,510,158.98x = 1,571,531,107,590,902,272
  5. Step 5: Solve for x
    x = 1,571,531,107,590,902,272/1,296,510,158.98
  6. Step 6: Final answer
    x = 1,212,124,021.32

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Double scale
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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.