Home / 1,122,912,005.80-1,684,368,008.70-945,544,556.20

Finding the Fourth Proportional to 1,122,912,005.80, 1,684,368,008.70 and 945,544,556.20

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Solution

The fourth proportional to 1,122,912,005.80, 1,684,368,008.70 and 945,544,556.20 is: 1,418,316,834.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,912,005.80 : 1,684,368,008.70 = 945,544,556.20 : x
  2. Step 2: Convert to fraction form
    1,122,912,005.80/1,684,368,008.70 = 945,544,556.20/x
  3. Step 3: Cross multiply
    1,122,912,005.80x = 1,684,368,008.70 × 945,544,556.20
  4. Step 4: Simplify right side
    1,122,912,005.80x = 1,592,645,001,263,719,424
  5. Step 5: Solve for x
    x = 1,592,645,001,263,719,424/1,122,912,005.80
  6. Step 6: Final answer
    x = 1,418,316,834.30

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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.