Home / 201,864,129,822.45-278,658,274,051.20-125,778,135,712.10

Finding the Fourth Proportional to 201,864,129,822.45, 278,658,274,051.20 and 125,778,135,712.10

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Solution

The fourth proportional to 201,864,129,822.45, 278,658,274,051.20 and 125,778,135,712.10 is: 173,627,272,174.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,864,129,822.45 : 278,658,274,051.20 = 125,778,135,712.10 : x
  2. Step 2: Convert to fraction form
    201,864,129,822.45/278,658,274,051.20 = 125,778,135,712.10/x
  3. Step 3: Cross multiply
    201,864,129,822.45x = 278,658,274,051.20 × 125,778,135,712.10
  4. Step 4: Simplify right side
    201,864,129,822.45x = 35,049,118,210,911,390,138,368
  5. Step 5: Solve for x
    x = 35,049,118,210,911,390,138,368/201,864,129,822.45
  6. Step 6: Final answer
    x = 173,627,272,174.30

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1.5x scale

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.