Home / 85,338,730.50-117,729,919.14-50,038,517.40

Finding the Fourth Proportional to 85,338,730.50, 117,729,919.14 and 50,038,517.40

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Solution

The fourth proportional to 85,338,730.50, 117,729,919.14 and 50,038,517.40 is: 69,031,148.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,338,730.50 : 117,729,919.14 = 50,038,517.40 : x
  2. Step 2: Convert to fraction form
    85,338,730.50/117,729,919.14 = 50,038,517.40/x
  3. Step 3: Cross multiply
    85,338,730.50x = 117,729,919.14 × 50,038,517.40
  4. Step 4: Simplify right side
    85,338,730.50x = 5,891,030,607,387,483
  5. Step 5: Solve for x
    x = 5,891,030,607,387,483/85,338,730.50
  6. Step 6: Final answer
    x = 69,031,148.84

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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.