Home / 71,528,177,930.37-98,704,437,976.45-39,411,742,816.33

Finding the Fourth Proportional to 71,528,177,930.37, 98,704,437,976.45 and 39,411,742,816.33

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Solution

The fourth proportional to 71,528,177,930.37, 98,704,437,976.45 and 39,411,742,816.33 is: 54,385,754,494.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,528,177,930.37 : 98,704,437,976.45 = 39,411,742,816.33 : x
  2. Step 2: Convert to fraction form
    71,528,177,930.37/98,704,437,976.45 = 39,411,742,816.33/x
  3. Step 3: Cross multiply
    71,528,177,930.37x = 98,704,437,976.45 × 39,411,742,816.33
  4. Step 4: Simplify right side
    71,528,177,930.37x = 3,890,113,924,358,243,614,720
  5. Step 5: Solve for x
    x = 3,890,113,924,358,243,614,720/71,528,177,930.37
  6. Step 6: Final answer
    x = 54,385,754,494.48

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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.