Home / 612,380,720.90-918,571,081.35-549,245,530.10

Finding the Fourth Proportional to 612,380,720.90, 918,571,081.35 and 549,245,530.10

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Solution

The fourth proportional to 612,380,720.90, 918,571,081.35 and 549,245,530.10 is: 823,868,295.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,380,720.90 : 918,571,081.35 = 549,245,530.10 : x
  2. Step 2: Convert to fraction form
    612,380,720.90/918,571,081.35 = 549,245,530.10/x
  3. Step 3: Cross multiply
    612,380,720.90x = 918,571,081.35 × 549,245,530.10
  4. Step 4: Simplify right side
    612,380,720.90x = 504,521,060,510,611,008
  5. Step 5: Solve for x
    x = 504,521,060,510,611,008/612,380,720.90
  6. Step 6: Final answer
    x = 823,868,295.15

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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.