Home / 1,314,664,892.60-1,971,997,338.90-769,125,615.80

Finding the Fourth Proportional to 1,314,664,892.60, 1,971,997,338.90 and 769,125,615.80

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Solution

The fourth proportional to 1,314,664,892.60, 1,971,997,338.90 and 769,125,615.80 is: 1,153,688,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,664,892.60 : 1,971,997,338.90 = 769,125,615.80 : x
  2. Step 2: Convert to fraction form
    1,314,664,892.60/1,971,997,338.90 = 769,125,615.80/x
  3. Step 3: Cross multiply
    1,314,664,892.60x = 1,971,997,338.90 × 769,125,615.80
  4. Step 4: Simplify right side
    1,314,664,892.60x = 1,516,713,667,637,423,872
  5. Step 5: Solve for x
    x = 1,516,713,667,637,423,872/1,314,664,892.60
  6. Step 6: Final answer
    x = 1,153,688,423.70

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Double scale
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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.