Home / 517,466,271.70-776,199,407.55-425,633,266.90

Finding the Fourth Proportional to 517,466,271.70, 776,199,407.55 and 425,633,266.90

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Solution

The fourth proportional to 517,466,271.70, 776,199,407.55 and 425,633,266.90 is: 638,449,900.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,466,271.70 : 776,199,407.55 = 425,633,266.90 : x
  2. Step 2: Convert to fraction form
    517,466,271.70/776,199,407.55 = 425,633,266.90/x
  3. Step 3: Cross multiply
    517,466,271.70x = 776,199,407.55 × 425,633,266.90
  4. Step 4: Simplify right side
    517,466,271.70x = 330,376,289,601,350,976
  5. Step 5: Solve for x
    x = 330,376,289,601,350,976/517,466,271.70
  6. Step 6: Final answer
    x = 638,449,900.35

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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.