Home / 189,114,138.72-261,018,088.74-119,455,214.40

Finding the Fourth Proportional to 189,114,138.72, 261,018,088.74 and 119,455,214.40

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Solution

The fourth proportional to 189,114,138.72, 261,018,088.74 and 119,455,214.40 is: 164,873,826.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,114,138.72 : 261,018,088.74 = 119,455,214.40 : x
  2. Step 2: Convert to fraction form
    189,114,138.72/261,018,088.74 = 119,455,214.40/x
  3. Step 3: Cross multiply
    189,114,138.72x = 261,018,088.74 × 119,455,214.40
  4. Step 4: Simplify right side
    189,114,138.72x = 31,179,971,752,714,928
  5. Step 5: Solve for x
    x = 31,179,971,752,714,928/189,114,138.72
  6. Step 6: Final answer
    x = 164,873,826.80

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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.