Home / 12,671,842.17-18,955,705.56-10,118,045.20

Finding the Fourth Proportional to 12,671,842.17, 18,955,705.56 and 10,118,045.20

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Solution

The fourth proportional to 12,671,842.17, 18,955,705.56 and 10,118,045.20 is: 15,135,501.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671,842.17 : 18,955,705.56 = 10,118,045.20 : x
  2. Step 2: Convert to fraction form
    12,671,842.17/18,955,705.56 = 10,118,045.20/x
  3. Step 3: Cross multiply
    12,671,842.17x = 18,955,705.56 × 10,118,045.20
  4. Step 4: Simplify right side
    12,671,842.17x = 191,794,685,653,971.28
  5. Step 5: Solve for x
    x = 191,794,685,653,971.28/12,671,842.17
  6. Step 6: Final answer
    x = 15,135,501.46

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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.