Home / 12,878,886.65-19,327,187.34-5,305,852.40

Finding the Fourth Proportional to 12,878,886.65, 19,327,187.34 and 5,305,852.40

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Solution

The fourth proportional to 12,878,886.65, 19,327,187.34 and 5,305,852.40 is: 7,962,427.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,886.65 : 19,327,187.34 = 5,305,852.40 : x
  2. Step 2: Convert to fraction form
    12,878,886.65/19,327,187.34 = 5,305,852.40/x
  3. Step 3: Cross multiply
    12,878,886.65x = 19,327,187.34 × 5,305,852.40
  4. Step 4: Simplify right side
    12,878,886.65x = 102,547,203,236,552.67
  5. Step 5: Solve for x
    x = 102,547,203,236,552.67/12,878,886.65
  6. Step 6: Final answer
    x = 7,962,427.66

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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.