Home / 997,967,781.28-1,377,139,848.12-545,756,510.92

Finding the Fourth Proportional to 997,967,781.28, 1,377,139,848.12 and 545,756,510.92

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Solution

The fourth proportional to 997,967,781.28, 1,377,139,848.12 and 545,756,510.92 is: 753,113,529.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,967,781.28 : 1,377,139,848.12 = 545,756,510.92 : x
  2. Step 2: Convert to fraction form
    997,967,781.28/1,377,139,848.12 = 545,756,510.92/x
  3. Step 3: Cross multiply
    997,967,781.28x = 1,377,139,848.12 × 545,756,510.92
  4. Step 4: Simplify right side
    997,967,781.28x = 751,583,038,558,869,760
  5. Step 5: Solve for x
    x = 751,583,038,558,869,760/997,967,781.28
  6. Step 6: Final answer
    x = 753,113,529.97

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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.