Home / 286,291,567,985.40-429,437,351,978.10-126,945,520,859.70

Finding the Fourth Proportional to 286,291,567,985.40, 429,437,351,978.10 and 126,945,520,859.70

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Solution

The fourth proportional to 286,291,567,985.40, 429,437,351,978.10 and 126,945,520,859.70 is: 190,418,281,289.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,291,567,985.40 : 429,437,351,978.10 = 126,945,520,859.70 : x
  2. Step 2: Convert to fraction form
    286,291,567,985.40/429,437,351,978.10 = 126,945,520,859.70/x
  3. Step 3: Cross multiply
    286,291,567,985.40x = 429,437,351,978.10 × 126,945,520,859.70
  4. Step 4: Simplify right side
    286,291,567,985.40x = 54,515,148,323,470,216,003,584
  5. Step 5: Solve for x
    x = 54,515,148,323,470,216,003,584/286,291,567,985.40
  6. Step 6: Final answer
    x = 190,418,281,289.55

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1.5x scale

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.