Home / 784,134,107.60-1,176,201,161.40-209,705,435.60

Finding the Fourth Proportional to 784,134,107.60, 1,176,201,161.40 and 209,705,435.60

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Solution

The fourth proportional to 784,134,107.60, 1,176,201,161.40 and 209,705,435.60 is: 314,558,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,134,107.60 : 1,176,201,161.40 = 209,705,435.60 : x
  2. Step 2: Convert to fraction form
    784,134,107.60/1,176,201,161.40 = 209,705,435.60/x
  3. Step 3: Cross multiply
    784,134,107.60x = 1,176,201,161.40 × 209,705,435.60
  4. Step 4: Simplify right side
    784,134,107.60x = 246,655,776,904,612,928
  5. Step 5: Solve for x
    x = 246,655,776,904,612,928/784,134,107.60
  6. Step 6: Final answer
    x = 314,558,153.40

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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.