Home / 781,281,690.44-1,078,169,913.84-424,049,595.20

Finding the Fourth Proportional to 781,281,690.44, 1,078,169,913.84 and 424,049,595.20

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Solution

The fourth proportional to 781,281,690.44, 1,078,169,913.84 and 424,049,595.20 is: 585,189,082.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,281,690.44 : 1,078,169,913.84 = 424,049,595.20 : x
  2. Step 2: Convert to fraction form
    781,281,690.44/1,078,169,913.84 = 424,049,595.20/x
  3. Step 3: Cross multiply
    781,281,690.44x = 1,078,169,913.84 × 424,049,595.20
  4. Step 4: Simplify right side
    781,281,690.44x = 457,197,515,520,670,848
  5. Step 5: Solve for x
    x = 457,197,515,520,670,848/781,281,690.44
  6. Step 6: Final answer
    x = 585,189,082.40

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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.