Home / 145,436,657.70-218,154,986.55-91,017,099.30

Finding the Fourth Proportional to 145,436,657.70, 218,154,986.55 and 91,017,099.30

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Solution

The fourth proportional to 145,436,657.70, 218,154,986.55 and 91,017,099.30 is: 136,525,648.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,436,657.70 : 218,154,986.55 = 91,017,099.30 : x
  2. Step 2: Convert to fraction form
    145,436,657.70/218,154,986.55 = 91,017,099.30/x
  3. Step 3: Cross multiply
    145,436,657.70x = 218,154,986.55 × 91,017,099.30
  4. Step 4: Simplify right side
    145,436,657.70x = 19,855,834,073,611,516
  5. Step 5: Solve for x
    x = 19,855,834,073,611,516/145,436,657.70
  6. Step 6: Final answer
    x = 136,525,648.95

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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.