Home / 92,929,041.60-128,269,110.92-61,989,137.07

Finding the Fourth Proportional to 92,929,041.60, 128,269,110.92 and 61,989,137.07

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Solution

The fourth proportional to 92,929,041.60, 128,269,110.92 and 61,989,137.07 is: 85,563,042.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,929,041.60 : 128,269,110.92 = 61,989,137.07 : x
  2. Step 2: Convert to fraction form
    92,929,041.60/128,269,110.92 = 61,989,137.07/x
  3. Step 3: Cross multiply
    92,929,041.60x = 128,269,110.92 × 61,989,137.07
  4. Step 4: Simplify right side
    92,929,041.60x = 7,951,291,498,666,914
  5. Step 5: Solve for x
    x = 7,951,291,498,666,914/92,929,041.60
  6. Step 6: Final answer
    x = 85,563,042.10

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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.