Home / 880,248,876.90-1,320,373,315.35-421,083,852.90

Finding the Fourth Proportional to 880,248,876.90, 1,320,373,315.35 and 421,083,852.90

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Solution

The fourth proportional to 880,248,876.90, 1,320,373,315.35 and 421,083,852.90 is: 631,625,779.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,248,876.90 : 1,320,373,315.35 = 421,083,852.90 : x
  2. Step 2: Convert to fraction form
    880,248,876.90/1,320,373,315.35 = 421,083,852.90/x
  3. Step 3: Cross multiply
    880,248,876.90x = 1,320,373,315.35 × 421,083,852.90
  4. Step 4: Simplify right side
    880,248,876.90x = 555,987,882,893,924,672
  5. Step 5: Solve for x
    x = 555,987,882,893,924,672/880,248,876.90
  6. Step 6: Final answer
    x = 631,625,779.35

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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.