Home / 154,756,435.68-213,563,873.70-85,140,322.02

Finding the Fourth Proportional to 154,756,435.68, 213,563,873.70 and 85,140,322.02

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Solution

The fourth proportional to 154,756,435.68, 213,563,873.70 and 85,140,322.02 is: 117,493,640.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,756,435.68 : 213,563,873.70 = 85,140,322.02 : x
  2. Step 2: Convert to fraction form
    154,756,435.68/213,563,873.70 = 85,140,322.02/x
  3. Step 3: Cross multiply
    154,756,435.68x = 213,563,873.70 × 85,140,322.02
  4. Step 4: Simplify right side
    154,756,435.68x = 18,182,896,978,656,608
  5. Step 5: Solve for x
    x = 18,182,896,978,656,608/154,756,435.68
  6. Step 6: Final answer
    x = 117,493,640.24

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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.