Home / 81,688,231.60-122,532,347.40-43,330,001.20

Finding the Fourth Proportional to 81,688,231.60, 122,532,347.40 and 43,330,001.20

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Solution

The fourth proportional to 81,688,231.60, 122,532,347.40 and 43,330,001.20 is: 64,995,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,688,231.60 : 122,532,347.40 = 43,330,001.20 : x
  2. Step 2: Convert to fraction form
    81,688,231.60/122,532,347.40 = 43,330,001.20/x
  3. Step 3: Cross multiply
    81,688,231.60x = 122,532,347.40 × 43,330,001.20
  4. Step 4: Simplify right side
    81,688,231.60x = 5,309,326,759,880,818
  5. Step 5: Solve for x
    x = 5,309,326,759,880,818/81,688,231.60
  6. Step 6: Final answer
    x = 64,995,001.80

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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.