Home / 309,113,206.40-463,669,809.60-165,785,974.40

Finding the Fourth Proportional to 309,113,206.40, 463,669,809.60 and 165,785,974.40

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Solution

The fourth proportional to 309,113,206.40, 463,669,809.60 and 165,785,974.40 is: 248,678,961.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,113,206.40 : 463,669,809.60 = 165,785,974.40 : x
  2. Step 2: Convert to fraction form
    309,113,206.40/463,669,809.60 = 165,785,974.40/x
  3. Step 3: Cross multiply
    309,113,206.40x = 463,669,809.60 × 165,785,974.40
  4. Step 4: Simplify right side
    309,113,206.40x = 76,869,951,184,398,480
  5. Step 5: Solve for x
    x = 76,869,951,184,398,480/309,113,206.40
  6. Step 6: Final answer
    x = 248,678,961.60

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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.