Home / 509,475,127.49-764,064,914.42-198,513,383.21

Finding the Fourth Proportional to 509,475,127.49, 764,064,914.42 and 198,513,383.21

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Solution

The fourth proportional to 509,475,127.49, 764,064,914.42 and 198,513,383.21 is: 297,712,494.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,475,127.49 : 764,064,914.42 = 198,513,383.21 : x
  2. Step 2: Convert to fraction form
    509,475,127.49/764,064,914.42 = 198,513,383.21/x
  3. Step 3: Cross multiply
    509,475,127.49x = 764,064,914.42 × 198,513,383.21
  4. Step 4: Simplify right side
    509,475,127.49x = 151,677,111,150,249,280
  5. Step 5: Solve for x
    x = 151,677,111,150,249,280/509,475,127.49
  6. Step 6: Final answer
    x = 297,712,494.62

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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.