Home / 812,508,690.93-1,217,011,903.68-548,742,822.01

Finding the Fourth Proportional to 812,508,690.93, 1,217,011,903.68 and 548,742,822.01

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Solution

The fourth proportional to 812,508,690.93, 1,217,011,903.68 and 548,742,822.01 is: 821,931,573.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,508,690.93 : 1,217,011,903.68 = 548,742,822.01 : x
  2. Step 2: Convert to fraction form
    812,508,690.93/1,217,011,903.68 = 548,742,822.01/x
  3. Step 3: Cross multiply
    812,508,690.93x = 1,217,011,903.68 × 548,742,822.01
  4. Step 4: Simplify right side
    812,508,690.93x = 667,826,546,444,113,408
  5. Step 5: Solve for x
    x = 667,826,546,444,113,408/812,508,690.93
  6. Step 6: Final answer
    x = 821,931,573.04

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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.