Home / 1,010,564,453.55-1,515,704,962.73-320,541,459.15

Finding the Fourth Proportional to 1,010,564,453.55, 1,515,704,962.73 and 320,541,459.15

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Solution

The fourth proportional to 1,010,564,453.55, 1,515,704,962.73 and 320,541,459.15 is: 480,767,237.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,564,453.55 : 1,515,704,962.73 = 320,541,459.15 : x
  2. Step 2: Convert to fraction form
    1,010,564,453.55/1,515,704,962.73 = 320,541,459.15/x
  3. Step 3: Cross multiply
    1,010,564,453.55x = 1,515,704,962.73 × 320,541,459.15
  4. Step 4: Simplify right side
    1,010,564,453.55x = 485,846,280,392,767,808
  5. Step 5: Solve for x
    x = 485,846,280,392,767,808/1,010,564,453.55
  6. Step 6: Final answer
    x = 480,767,237.25

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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.