Home / 1,209,542,814.63-1,815,018,381.33-509,991,083.10

Finding the Fourth Proportional to 1,209,542,814.63, 1,815,018,381.33 and 509,991,083.10

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Solution

The fourth proportional to 1,209,542,814.63, 1,815,018,381.33 and 509,991,083.10 is: 765,283,526.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,542,814.63 : 1,815,018,381.33 = 509,991,083.10 : x
  2. Step 2: Convert to fraction form
    1,209,542,814.63/1,815,018,381.33 = 509,991,083.10/x
  3. Step 3: Cross multiply
    1,209,542,814.63x = 1,815,018,381.33 × 509,991,083.10
  4. Step 4: Simplify right side
    1,209,542,814.63x = 925,643,190,140,895,488
  5. Step 5: Solve for x
    x = 925,643,190,140,895,488/1,209,542,814.63
  6. Step 6: Final answer
    x = 765,283,526.09

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Double scale
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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.