Home / 169,115,430.30-253,673,145.45-128,804,646.30

Finding the Fourth Proportional to 169,115,430.30, 253,673,145.45 and 128,804,646.30

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Solution

The fourth proportional to 169,115,430.30, 253,673,145.45 and 128,804,646.30 is: 193,206,969.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,115,430.30 : 253,673,145.45 = 128,804,646.30 : x
  2. Step 2: Convert to fraction form
    169,115,430.30/253,673,145.45 = 128,804,646.30/x
  3. Step 3: Cross multiply
    169,115,430.30x = 253,673,145.45 × 128,804,646.30
  4. Step 4: Simplify right side
    169,115,430.30x = 32,674,279,775,495,704
  5. Step 5: Solve for x
    x = 32,674,279,775,495,704/169,115,430.30
  6. Step 6: Final answer
    x = 193,206,969.45

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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.