Home / 723,087,487.68-997,871,666.28-405,618,107.40

Finding the Fourth Proportional to 723,087,487.68, 997,871,666.28 and 405,618,107.40

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Solution

The fourth proportional to 723,087,487.68, 997,871,666.28 and 405,618,107.40 is: 559,759,121.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,087,487.68 : 997,871,666.28 = 405,618,107.40 : x
  2. Step 2: Convert to fraction form
    723,087,487.68/997,871,666.28 = 405,618,107.40/x
  3. Step 3: Cross multiply
    723,087,487.68x = 997,871,666.28 × 405,618,107.40
  4. Step 4: Simplify right side
    723,087,487.68x = 404,754,816,704,577,984
  5. Step 5: Solve for x
    x = 404,754,816,704,577,984/723,087,487.68
  6. Step 6: Final answer
    x = 559,759,121.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.