Home / 939,777,949.40-1,409,666,924.10-572,445,930.20

Finding the Fourth Proportional to 939,777,949.40, 1,409,666,924.10 and 572,445,930.20

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Solution

The fourth proportional to 939,777,949.40, 1,409,666,924.10 and 572,445,930.20 is: 858,668,895.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,777,949.40 : 1,409,666,924.10 = 572,445,930.20 : x
  2. Step 2: Convert to fraction form
    939,777,949.40/1,409,666,924.10 = 572,445,930.20/x
  3. Step 3: Cross multiply
    939,777,949.40x = 1,409,666,924.10 × 572,445,930.20
  4. Step 4: Simplify right side
    939,777,949.40x = 806,958,093,638,597,248
  5. Step 5: Solve for x
    x = 806,958,093,638,597,248/939,777,949.40
  6. Step 6: Final answer
    x = 858,668,895.30

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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.