Home / 830,510,214.27-1,245,889,194.47-305,838,974.36

Finding the Fourth Proportional to 830,510,214.27, 1,245,889,194.47 and 305,838,974.36

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Solution

The fourth proportional to 830,510,214.27, 1,245,889,194.47 and 305,838,974.36 is: 458,804,078.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,510,214.27 : 1,245,889,194.47 = 305,838,974.36 : x
  2. Step 2: Convert to fraction form
    830,510,214.27/1,245,889,194.47 = 305,838,974.36/x
  3. Step 3: Cross multiply
    830,510,214.27x = 1,245,889,194.47 × 305,838,974.36
  4. Step 4: Simplify right side
    830,510,214.27x = 381,041,473,395,152,768
  5. Step 5: Solve for x
    x = 381,041,473,395,152,768/830,510,214.27
  6. Step 6: Final answer
    x = 458,804,078.32

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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.