Home / 1,293,643,331.20-1,940,464,996.80-711,152,502.40

Finding the Fourth Proportional to 1,293,643,331.20, 1,940,464,996.80 and 711,152,502.40

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Solution

The fourth proportional to 1,293,643,331.20, 1,940,464,996.80 and 711,152,502.40 is: 1,066,728,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,643,331.20 : 1,940,464,996.80 = 711,152,502.40 : x
  2. Step 2: Convert to fraction form
    1,293,643,331.20/1,940,464,996.80 = 711,152,502.40/x
  3. Step 3: Cross multiply
    1,293,643,331.20x = 1,940,464,996.80 × 711,152,502.40
  4. Step 4: Simplify right side
    1,293,643,331.20x = 1,379,966,538,293,927,936
  5. Step 5: Solve for x
    x = 1,379,966,538,293,927,936/1,293,643,331.20
  6. Step 6: Final answer
    x = 1,066,728,753.60

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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.