Home / 66,533,862.31-99,804,325.77-20,507,342.87

Finding the Fourth Proportional to 66,533,862.31, 99,804,325.77 and 20,507,342.87

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Solution

The fourth proportional to 66,533,862.31, 99,804,325.77 and 20,507,342.87 is: 30,762,103.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,533,862.31 : 99,804,325.77 = 20,507,342.87 : x
  2. Step 2: Convert to fraction form
    66,533,862.31/99,804,325.77 = 20,507,342.87/x
  3. Step 3: Cross multiply
    66,533,862.31x = 99,804,325.77 × 20,507,342.87
  4. Step 4: Simplify right side
    66,533,862.31x = 2,046,721,528,724,077.25
  5. Step 5: Solve for x
    x = 2,046,721,528,724,077.25/66,533,862.31
  6. Step 6: Final answer
    x = 30,762,103.05

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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.