Home / 1,119,746,000.40-1,679,619,000.60-769,042,179.60

Finding the Fourth Proportional to 1,119,746,000.40, 1,679,619,000.60 and 769,042,179.60

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Solution

The fourth proportional to 1,119,746,000.40, 1,679,619,000.60 and 769,042,179.60 is: 1,153,563,269.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,746,000.40 : 1,679,619,000.60 = 769,042,179.60 : x
  2. Step 2: Convert to fraction form
    1,119,746,000.40/1,679,619,000.60 = 769,042,179.60/x
  3. Step 3: Cross multiply
    1,119,746,000.40x = 1,679,619,000.60 × 769,042,179.60
  4. Step 4: Simplify right side
    1,119,746,000.40x = 1,291,697,857,118,997,760
  5. Step 5: Solve for x
    x = 1,291,697,857,118,997,760/1,119,746,000.40
  6. Step 6: Final answer
    x = 1,153,563,269.40

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Double scale
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Similar ratio
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1.5x scale

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.