Home / 86,249,173.78-119,034,297.12-49,088,489.50

Finding the Fourth Proportional to 86,249,173.78, 119,034,297.12 and 49,088,489.50

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Solution

The fourth proportional to 86,249,173.78, 119,034,297.12 and 49,088,489.50 is: 67,748,055.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,249,173.78 : 119,034,297.12 = 49,088,489.50 : x
  2. Step 2: Convert to fraction form
    86,249,173.78/119,034,297.12 = 49,088,489.50/x
  3. Step 3: Cross multiply
    86,249,173.78x = 119,034,297.12 × 49,088,489.50
  4. Step 4: Simplify right side
    86,249,173.78x = 5,843,213,844,315,000
  5. Step 5: Solve for x
    x = 5,843,213,844,315,000/86,249,173.78
  6. Step 6: Final answer
    x = 67,748,055.87

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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.