Home / 151,783,543.80-209,461,360.50-82,168,924.66

Finding the Fourth Proportional to 151,783,543.80, 209,461,360.50 and 82,168,924.66

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Solution

The fourth proportional to 151,783,543.80, 209,461,360.50 and 82,168,924.66 is: 113,393,153.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,783,543.80 : 209,461,360.50 = 82,168,924.66 : x
  2. Step 2: Convert to fraction form
    151,783,543.80/209,461,360.50 = 82,168,924.66/x
  3. Step 3: Cross multiply
    151,783,543.80x = 209,461,360.50 × 82,168,924.66
  4. Step 4: Simplify right side
    151,783,543.80x = 17,211,214,749,581,946
  5. Step 5: Solve for x
    x = 17,211,214,749,581,946/151,783,543.80
  6. Step 6: Final answer
    x = 113,393,153.95

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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.