Home / 280,326,327,430.32-420,489,496,018.56-68,089,029,812.40

Finding the Fourth Proportional to 280,326,327,430.32, 420,489,496,018.56 and 68,089,029,812.40

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Solution

The fourth proportional to 280,326,327,430.32, 420,489,496,018.56 and 68,089,029,812.40 is: 102,133,545,902.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,326,327,430.32 : 420,489,496,018.56 = 68,089,029,812.40 : x
  2. Step 2: Convert to fraction form
    280,326,327,430.32/420,489,496,018.56 = 68,089,029,812.40/x
  3. Step 3: Cross multiply
    280,326,327,430.32x = 420,489,496,018.56 × 68,089,029,812.40
  4. Step 4: Simplify right side
    280,326,327,430.32x = 28,630,721,830,208,782,991,360
  5. Step 5: Solve for x
    x = 28,630,721,830,208,782,991,360/280,326,327,430.32
  6. Step 6: Final answer
    x = 102,133,545,902.23

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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.