Home / 1,321,596,243.40-1,982,394,365.10-709,376,211.40

Finding the Fourth Proportional to 1,321,596,243.40, 1,982,394,365.10 and 709,376,211.40

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Solution

The fourth proportional to 1,321,596,243.40, 1,982,394,365.10 and 709,376,211.40 is: 1,064,064,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,596,243.40 : 1,982,394,365.10 = 709,376,211.40 : x
  2. Step 2: Convert to fraction form
    1,321,596,243.40/1,982,394,365.10 = 709,376,211.40/x
  3. Step 3: Cross multiply
    1,321,596,243.40x = 1,982,394,365.10 × 709,376,211.40
  4. Step 4: Simplify right side
    1,321,596,243.40x = 1,406,263,404,215,346,176
  5. Step 5: Solve for x
    x = 1,406,263,404,215,346,176/1,321,596,243.40
  6. Step 6: Final answer
    x = 1,064,064,317.10

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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.