Home / 77,555,300.80-116,332,951.20-65,611,364.80

Finding the Fourth Proportional to 77,555,300.80, 116,332,951.20 and 65,611,364.80

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Solution

The fourth proportional to 77,555,300.80, 116,332,951.20 and 65,611,364.80 is: 98,417,047.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,555,300.80 : 116,332,951.20 = 65,611,364.80 : x
  2. Step 2: Convert to fraction form
    77,555,300.80/116,332,951.20 = 65,611,364.80/x
  3. Step 3: Cross multiply
    77,555,300.80x = 116,332,951.20 × 65,611,364.80
  4. Step 4: Simplify right side
    77,555,300.80x = 7,632,763,699,443,798
  5. Step 5: Solve for x
    x = 7,632,763,699,443,798/77,555,300.80
  6. Step 6: Final answer
    x = 98,417,047.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.