Home / 1,420,161,776.40-2,130,242,664.60-655,749,872.40

Finding the Fourth Proportional to 1,420,161,776.40, 2,130,242,664.60 and 655,749,872.40

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Solution

The fourth proportional to 1,420,161,776.40, 2,130,242,664.60 and 655,749,872.40 is: 983,624,808.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,161,776.40 : 2,130,242,664.60 = 655,749,872.40 : x
  2. Step 2: Convert to fraction form
    1,420,161,776.40/2,130,242,664.60 = 655,749,872.40/x
  3. Step 3: Cross multiply
    1,420,161,776.40x = 2,130,242,664.60 × 655,749,872.40
  4. Step 4: Simplify right side
    1,420,161,776.40x = 1,396,906,355,492,485,888
  5. Step 5: Solve for x
    x = 1,396,906,355,492,485,888/1,420,161,776.40
  6. Step 6: Final answer
    x = 983,624,808.60

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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.