Home / 142,326,909.60-213,525,356.40-40,089,616.80

Finding the Fourth Proportional to 142,326,909.60, 213,525,356.40 and 40,089,616.80

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Solution

The fourth proportional to 142,326,909.60, 213,525,356.40 and 40,089,616.80 is: 60,144,281.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,326,909.60 : 213,525,356.40 = 40,089,616.80 : x
  2. Step 2: Convert to fraction form
    142,326,909.60/213,525,356.40 = 40,089,616.80/x
  3. Step 3: Cross multiply
    142,326,909.60x = 213,525,356.40 × 40,089,616.80
  4. Step 4: Simplify right side
    142,326,909.60x = 8,560,149,715,159,427
  5. Step 5: Solve for x
    x = 8,560,149,715,159,427/142,326,909.60
  6. Step 6: Final answer
    x = 60,144,281.49

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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.