Home / 805,853,205.70-1,208,779,808.55-260,649,852.10

Finding the Fourth Proportional to 805,853,205.70, 1,208,779,808.55 and 260,649,852.10

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Solution

The fourth proportional to 805,853,205.70, 1,208,779,808.55 and 260,649,852.10 is: 390,974,778.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,853,205.70 : 1,208,779,808.55 = 260,649,852.10 : x
  2. Step 2: Convert to fraction form
    805,853,205.70/1,208,779,808.55 = 260,649,852.10/x
  3. Step 3: Cross multiply
    805,853,205.70x = 1,208,779,808.55 × 260,649,852.10
  4. Step 4: Simplify right side
    805,853,205.70x = 315,068,278,320,023,808
  5. Step 5: Solve for x
    x = 315,068,278,320,023,808/805,853,205.70
  6. Step 6: Final answer
    x = 390,974,778.15

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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.