Home / 1,078,215,543.36-1,487,937,733.92-608,416,424.64

Finding the Fourth Proportional to 1,078,215,543.36, 1,487,937,733.92 and 608,416,424.64

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Solution

The fourth proportional to 1,078,215,543.36, 1,487,937,733.92 and 608,416,424.64 is: 839,614,826.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,215,543.36 : 1,487,937,733.92 = 608,416,424.64 : x
  2. Step 2: Convert to fraction form
    1,078,215,543.36/1,487,937,733.92 = 608,416,424.64/x
  3. Step 3: Cross multiply
    1,078,215,543.36x = 1,487,937,733.92 × 608,416,424.64
  4. Step 4: Simplify right side
    1,078,215,543.36x = 905,285,756,158,550,016
  5. Step 5: Solve for x
    x = 905,285,756,158,550,016/1,078,215,543.36
  6. Step 6: Final answer
    x = 839,614,826.31

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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.