Home / 497,664,014.40-746,496,021.60-279,089,985.60

Finding the Fourth Proportional to 497,664,014.40, 746,496,021.60 and 279,089,985.60

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Solution

The fourth proportional to 497,664,014.40, 746,496,021.60 and 279,089,985.60 is: 418,634,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,664,014.40 : 746,496,021.60 = 279,089,985.60 : x
  2. Step 2: Convert to fraction form
    497,664,014.40/746,496,021.60 = 279,089,985.60/x
  3. Step 3: Cross multiply
    497,664,014.40x = 746,496,021.60 × 279,089,985.60
  4. Step 4: Simplify right side
    497,664,014.40x = 208,339,563,918,801,312
  5. Step 5: Solve for x
    x = 208,339,563,918,801,312/497,664,014.40
  6. Step 6: Final answer
    x = 418,634,978.40

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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.