Home / 145,551,121.20-218,326,681.80-48,509,994.60

Finding the Fourth Proportional to 145,551,121.20, 218,326,681.80 and 48,509,994.60

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Solution

The fourth proportional to 145,551,121.20, 218,326,681.80 and 48,509,994.60 is: 72,764,991.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,551,121.20 : 218,326,681.80 = 48,509,994.60 : x
  2. Step 2: Convert to fraction form
    145,551,121.20/218,326,681.80 = 48,509,994.60/x
  3. Step 3: Cross multiply
    145,551,121.20x = 218,326,681.80 × 48,509,994.60
  4. Step 4: Simplify right side
    145,551,121.20x = 10,591,026,155,153,920
  5. Step 5: Solve for x
    x = 10,591,026,155,153,920/145,551,121.20
  6. Step 6: Final answer
    x = 72,764,991.90

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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.