Home / 71,951,719.74-99,293,670.36-38,911,968.18

Finding the Fourth Proportional to 71,951,719.74, 99,293,670.36 and 38,911,968.18

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Solution

The fourth proportional to 71,951,719.74, 99,293,670.36 and 38,911,968.18 is: 53,698,676.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,951,719.74 : 99,293,670.36 = 38,911,968.18 : x
  2. Step 2: Convert to fraction form
    71,951,719.74/99,293,670.36 = 38,911,968.18/x
  3. Step 3: Cross multiply
    71,951,719.74x = 99,293,670.36 × 38,911,968.18
  4. Step 4: Simplify right side
    71,951,719.74x = 3,863,712,141,523,729
  5. Step 5: Solve for x
    x = 3,863,712,141,523,729/71,951,719.74
  6. Step 6: Final answer
    x = 53,698,676.77

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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.