Home / 1,030,945,931.51-1,423,005,181.34-673,767,439.20

Finding the Fourth Proportional to 1,030,945,931.51, 1,423,005,181.34 and 673,767,439.20

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Solution

The fourth proportional to 1,030,945,931.51, 1,423,005,181.34 and 673,767,439.20 is: 929,994,995.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,945,931.51 : 1,423,005,181.34 = 673,767,439.20 : x
  2. Step 2: Convert to fraction form
    1,030,945,931.51/1,423,005,181.34 = 673,767,439.20/x
  3. Step 3: Cross multiply
    1,030,945,931.51x = 1,423,005,181.34 × 673,767,439.20
  4. Step 4: Simplify right side
    1,030,945,931.51x = 958,774,556,996,414,720
  5. Step 5: Solve for x
    x = 958,774,556,996,414,720/1,030,945,931.51
  6. Step 6: Final answer
    x = 929,994,995.56

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.