Home / 99,677,906.80-149,516,860.20-65,637,689.20

Finding the Fourth Proportional to 99,677,906.80, 149,516,860.20 and 65,637,689.20

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Solution

The fourth proportional to 99,677,906.80, 149,516,860.20 and 65,637,689.20 is: 98,456,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,677,906.80 : 149,516,860.20 = 65,637,689.20 : x
  2. Step 2: Convert to fraction form
    99,677,906.80/149,516,860.20 = 65,637,689.20/x
  3. Step 3: Cross multiply
    99,677,906.80x = 149,516,860.20 × 65,637,689.20
  4. Step 4: Simplify right side
    99,677,906.80x = 9,813,941,199,967,450
  5. Step 5: Solve for x
    x = 9,813,941,199,967,450/99,677,906.80
  6. Step 6: Final answer
    x = 98,456,533.80

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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.