Home / 3,109,385,670.40-4,664,078,505.60-811,670,982.40

Finding the Fourth Proportional to 3,109,385,670.40, 4,664,078,505.60 and 811,670,982.40

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Solution

The fourth proportional to 3,109,385,670.40, 4,664,078,505.60 and 811,670,982.40 is: 1,217,506,473.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109,385,670.40 : 4,664,078,505.60 = 811,670,982.40 : x
  2. Step 2: Convert to fraction form
    3,109,385,670.40/4,664,078,505.60 = 811,670,982.40/x
  3. Step 3: Cross multiply
    3,109,385,670.40x = 4,664,078,505.60 × 811,670,982.40
  4. Step 4: Simplify right side
    3,109,385,670.40x = 3,785,697,182,631,076,352
  5. Step 5: Solve for x
    x = 3,785,697,182,631,076,352/3,109,385,670.40
  6. Step 6: Final answer
    x = 1,217,506,473.60

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Double scale
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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.