Home / 765,150,980.72-1,056,234,163.44-514,400,798.48

Finding the Fourth Proportional to 765,150,980.72, 1,056,234,163.44 and 514,400,798.48

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Solution

The fourth proportional to 765,150,980.72, 1,056,234,163.44 and 514,400,798.48 is: 710,092,139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,150,980.72 : 1,056,234,163.44 = 514,400,798.48 : x
  2. Step 2: Convert to fraction form
    765,150,980.72/1,056,234,163.44 = 514,400,798.48/x
  3. Step 3: Cross multiply
    765,150,980.72x = 1,056,234,163.44 × 514,400,798.48
  4. Step 4: Simplify right side
    765,150,980.72x = 543,327,697,055,390,848
  5. Step 5: Solve for x
    x = 543,327,697,055,390,848/765,150,980.72
  6. Step 6: Final answer
    x = 710,092,139.65

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