Home / 12,878,858.92-17,773,506.38-7,298,188.64

Finding the Fourth Proportional to 12,878,858.92, 17,773,506.38 and 7,298,188.64

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Solution

The fourth proportional to 12,878,858.92, 17,773,506.38 and 7,298,188.64 is: 10,071,886.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,858.92 : 17,773,506.38 = 7,298,188.64 : x
  2. Step 2: Convert to fraction form
    12,878,858.92/17,773,506.38 = 7,298,188.64/x
  3. Step 3: Cross multiply
    12,878,858.92x = 17,773,506.38 × 7,298,188.64
  4. Step 4: Simplify right side
    12,878,858.92x = 129,714,402,355,483.52
  5. Step 5: Solve for x
    x = 129,714,402,355,483.52/12,878,858.92
  6. Step 6: Final answer
    x = 10,071,886.27

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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.