Home / 660,510,096.90-990,765,145.35-200,447,528.10

Finding the Fourth Proportional to 660,510,096.90, 990,765,145.35 and 200,447,528.10

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Solution

The fourth proportional to 660,510,096.90, 990,765,145.35 and 200,447,528.10 is: 300,671,292.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,510,096.90 : 990,765,145.35 = 200,447,528.10 : x
  2. Step 2: Convert to fraction form
    660,510,096.90/990,765,145.35 = 200,447,528.10/x
  3. Step 3: Cross multiply
    660,510,096.90x = 990,765,145.35 × 200,447,528.10
  4. Step 4: Simplify right side
    660,510,096.90x = 198,596,424,313,044,704
  5. Step 5: Solve for x
    x = 198,596,424,313,044,704/660,510,096.90
  6. Step 6: Final answer
    x = 300,671,292.15

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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.