Home / 813,148,426.94-1,122,060,356.96-478,600,997.76

Finding the Fourth Proportional to 813,148,426.94, 1,122,060,356.96 and 478,600,997.76

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Solution

The fourth proportional to 813,148,426.94, 1,122,060,356.96 and 478,600,997.76 is: 660,419,658.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,148,426.94 : 1,122,060,356.96 = 478,600,997.76 : x
  2. Step 2: Convert to fraction form
    813,148,426.94/1,122,060,356.96 = 478,600,997.76/x
  3. Step 3: Cross multiply
    813,148,426.94x = 1,122,060,356.96 × 478,600,997.76
  4. Step 4: Simplify right side
    813,148,426.94x = 537,019,206,385,604,736
  5. Step 5: Solve for x
    x = 537,019,206,385,604,736/813,148,426.94
  6. Step 6: Final answer
    x = 660,419,658.45

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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.