Home / 640,169,308.04-960,253,973.58-155,491,850.12

Finding the Fourth Proportional to 640,169,308.04, 960,253,973.58 and 155,491,850.12

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Solution

The fourth proportional to 640,169,308.04, 960,253,973.58 and 155,491,850.12 is: 233,237,777.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,169,308.04 : 960,253,973.58 = 155,491,850.12 : x
  2. Step 2: Convert to fraction form
    640,169,308.04/960,253,973.58 = 155,491,850.12/x
  3. Step 3: Cross multiply
    640,169,308.04x = 960,253,973.58 × 155,491,850.12
  4. Step 4: Simplify right side
    640,169,308.04x = 149,311,666,937,035,808
  5. Step 5: Solve for x
    x = 149,311,666,937,035,808/640,169,308.04
  6. Step 6: Final answer
    x = 233,237,777.98

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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.