Home / 1,309,978,721,617.40-1,807,864,182,264.10-724,015,961,798.74

Finding the Fourth Proportional to 1,309,978,721,617.40, 1,807,864,182,264.10 and 724,015,961,798.74

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Solution

The fourth proportional to 1,309,978,721,617.40, 1,807,864,182,264.10 and 724,015,961,798.74 is: 999,193,729,732.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,978,721,617.40 : 1,807,864,182,264.10 = 724,015,961,798.74 : x
  2. Step 2: Convert to fraction form
    1,309,978,721,617.40/1,807,864,182,264.10 = 724,015,961,798.74/x
  3. Step 3: Cross multiply
    1,309,978,721,617.40x = 1,807,864,182,264.10 × 724,015,961,798.74
  4. Step 4: Simplify right side
    1,309,978,721,617.40x = 1,308,922,524,723,434,930,307,072
  5. Step 5: Solve for x
    x = 1,308,922,524,723,434,930,307,072/1,309,978,721,617.40
  6. Step 6: Final answer
    x = 999,193,729,732.75

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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.