Home / 723,064,202.40-997,829,242.32-393,039,341.40

Finding the Fourth Proportional to 723,064,202.40, 997,829,242.32 and 393,039,341.40

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Solution

The fourth proportional to 723,064,202.40, 997,829,242.32 and 393,039,341.40 is: 542,394,640.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,064,202.40 : 997,829,242.32 = 393,039,341.40 : x
  2. Step 2: Convert to fraction form
    723,064,202.40/997,829,242.32 = 393,039,341.40/x
  3. Step 3: Cross multiply
    723,064,202.40x = 997,829,242.32 × 393,039,341.40
  4. Step 4: Simplify right side
    723,064,202.40x = 392,186,148,231,113,792
  5. Step 5: Solve for x
    x = 392,186,148,231,113,792/723,064,202.40
  6. Step 6: Final answer
    x = 542,394,640.65

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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.