Home / 116,503,711.40-160,835,569.72-85,106,509.50

Finding the Fourth Proportional to 116,503,711.40, 160,835,569.72 and 85,106,509.50

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Solution

The fourth proportional to 116,503,711.40, 160,835,569.72 and 85,106,509.50 is: 117,491,140.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,503,711.40 : 160,835,569.72 = 85,106,509.50 : x
  2. Step 2: Convert to fraction form
    116,503,711.40/160,835,569.72 = 85,106,509.50/x
  3. Step 3: Cross multiply
    116,503,711.40x = 160,835,569.72 × 85,106,509.50
  4. Step 4: Simplify right side
    116,503,711.40x = 13,688,153,942,313,092
  5. Step 5: Solve for x
    x = 13,688,153,942,313,092/116,503,711.40
  6. Step 6: Final answer
    x = 117,491,140.65

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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.