Home / 134,857,489.78-186,103,336.05-72,977,828.34

Finding the Fourth Proportional to 134,857,489.78, 186,103,336.05 and 72,977,828.34

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Solution

The fourth proportional to 134,857,489.78, 186,103,336.05 and 72,977,828.34 is: 100,709,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,857,489.78 : 186,103,336.05 = 72,977,828.34 : x
  2. Step 2: Convert to fraction form
    134,857,489.78/186,103,336.05 = 72,977,828.34/x
  3. Step 3: Cross multiply
    134,857,489.78x = 186,103,336.05 × 72,977,828.34
  4. Step 4: Simplify right side
    134,857,489.78x = 13,581,417,312,456,122
  5. Step 5: Solve for x
    x = 13,581,417,312,456,122/134,857,489.78
  6. Step 6: Final answer
    x = 100,709,403.20

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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.