Home / 1,361,185,338.72-1,878,493,518.02-758,355,426.39

Finding the Fourth Proportional to 1,361,185,338.72, 1,878,493,518.02 and 758,355,426.39

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Solution

The fourth proportional to 1,361,185,338.72, 1,878,493,518.02 and 758,355,426.39 is: 1,046,562,662.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,185,338.72 : 1,878,493,518.02 = 758,355,426.39 : x
  2. Step 2: Convert to fraction form
    1,361,185,338.72/1,878,493,518.02 = 758,355,426.39/x
  3. Step 3: Cross multiply
    1,361,185,338.72x = 1,878,493,518.02 × 758,355,426.39
  4. Step 4: Simplify right side
    1,361,185,338.72x = 1,424,565,752,830,804,224
  5. Step 5: Solve for x
    x = 1,424,565,752,830,804,224/1,361,185,338.72
  6. Step 6: Final answer
    x = 1,046,562,662.93

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Double scale
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1.5x scale

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.