Home / 85,791,952.71-128,688,827.10-33,989,163.05

Finding the Fourth Proportional to 85,791,952.71, 128,688,827.10 and 33,989,163.05

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Solution

The fourth proportional to 85,791,952.71, 128,688,827.10 and 33,989,163.05 is: 50,984,100.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,791,952.71 : 128,688,827.10 = 33,989,163.05 : x
  2. Step 2: Convert to fraction form
    85,791,952.71/128,688,827.10 = 33,989,163.05/x
  3. Step 3: Cross multiply
    85,791,952.71x = 128,688,827.10 × 33,989,163.05
  4. Step 4: Simplify right side
    85,791,952.71x = 4,374,025,526,676,905.50
  5. Step 5: Solve for x
    x = 4,374,025,526,676,905.50/85,791,952.71
  6. Step 6: Final answer
    x = 50,984,100.36

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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.