Home / 147,309,139.08-203,298,714.72-81,242,559

Finding the Fourth Proportional to 147,309,139.08, 203,298,714.72 and 81,242,559

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Solution

The fourth proportional to 147,309,139.08, 203,298,714.72 and 81,242,559 is: 112,121,406.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,309,139.08 : 203,298,714.72 = 81,242,559 : x
  2. Step 2: Convert to fraction form
    147,309,139.08/203,298,714.72 = 81,242,559/x
  3. Step 3: Cross multiply
    147,309,139.08x = 203,298,714.72 × 81,242,559
  4. Step 4: Simplify right side
    147,309,139.08x = 16,516,507,825,263,768
  5. Step 5: Solve for x
    x = 16,516,507,825,263,768/147,309,139.08
  6. Step 6: Final answer
    x = 112,121,406.24

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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.