Home / 64,996,694.64-89,643,135.96-57,139,407.54

Finding the Fourth Proportional to 64,996,694.64, 89,643,135.96 and 57,139,407.54

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Solution

The fourth proportional to 64,996,694.64, 89,643,135.96 and 57,139,407.54 is: 78,806,402.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,996,694.64 : 89,643,135.96 = 57,139,407.54 : x
  2. Step 2: Convert to fraction form
    64,996,694.64/89,643,135.96 = 57,139,407.54/x
  3. Step 3: Cross multiply
    64,996,694.64x = 89,643,135.96 × 57,139,407.54
  4. Step 4: Simplify right side
    64,996,694.64x = 5,122,155,678,782,069
  5. Step 5: Solve for x
    x = 5,122,155,678,782,069/64,996,694.64
  6. Step 6: Final answer
    x = 78,806,402.50

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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.