Home / 99,011,015.20-148,516,522.80-90,500,960.80

Finding the Fourth Proportional to 99,011,015.20, 148,516,522.80 and 90,500,960.80

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Solution

The fourth proportional to 99,011,015.20, 148,516,522.80 and 90,500,960.80 is: 135,751,441.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,011,015.20 : 148,516,522.80 = 90,500,960.80 : x
  2. Step 2: Convert to fraction form
    99,011,015.20/148,516,522.80 = 90,500,960.80/x
  3. Step 3: Cross multiply
    99,011,015.20x = 148,516,522.80 × 90,500,960.80
  4. Step 4: Simplify right side
    99,011,015.20x = 13,440,888,008,075,106
  5. Step 5: Solve for x
    x = 13,440,888,008,075,106/99,011,015.20
  6. Step 6: Final answer
    x = 135,751,441.20

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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.