Home / 1,345,233,870.24-1,856,468,545.96-780,675,041.76

Finding the Fourth Proportional to 1,345,233,870.24, 1,856,468,545.96 and 780,675,041.76

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Solution

The fourth proportional to 1,345,233,870.24, 1,856,468,545.96 and 780,675,041.76 is: 1,077,358,139.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,233,870.24 : 1,856,468,545.96 = 780,675,041.76 : x
  2. Step 2: Convert to fraction form
    1,345,233,870.24/1,856,468,545.96 = 780,675,041.76/x
  3. Step 3: Cross multiply
    1,345,233,870.24x = 1,856,468,545.96 × 780,675,041.76
  4. Step 4: Simplify right side
    1,345,233,870.24x = 1,449,298,659,643,449,600
  5. Step 5: Solve for x
    x = 1,449,298,659,643,449,600/1,345,233,870.24
  6. Step 6: Final answer
    x = 1,077,358,139.51

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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.