Home / 210,939,938,819.88-291,122,070,994.92-125,301,242,913.18

Finding the Fourth Proportional to 210,939,938,819.88, 291,122,070,994.92 and 125,301,242,913.18

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Solution

The fourth proportional to 210,939,938,819.88, 291,122,070,994.92 and 125,301,242,913.18 is: 172,930,539,087.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,939,938,819.88 : 291,122,070,994.92 = 125,301,242,913.18 : x
  2. Step 2: Convert to fraction form
    210,939,938,819.88/291,122,070,994.92 = 125,301,242,913.18/x
  3. Step 3: Cross multiply
    210,939,938,819.88x = 291,122,070,994.92 × 125,301,242,913.18
  4. Step 4: Simplify right side
    210,939,938,819.88x = 36,477,957,335,122,500,911,104
  5. Step 5: Solve for x
    x = 36,477,957,335,122,500,911,104/210,939,938,819.88
  6. Step 6: Final answer
    x = 172,930,539,087.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.