Home / 945,136,198.08-1,304,308,832.18-521,748,856.53

Finding the Fourth Proportional to 945,136,198.08, 1,304,308,832.18 and 521,748,856.53

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Solution

The fourth proportional to 945,136,198.08, 1,304,308,832.18 and 521,748,856.53 is: 720,024,947.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,136,198.08 : 1,304,308,832.18 = 521,748,856.53 : x
  2. Step 2: Convert to fraction form
    945,136,198.08/1,304,308,832.18 = 521,748,856.53/x
  3. Step 3: Cross multiply
    945,136,198.08x = 1,304,308,832.18 × 521,748,856.53
  4. Step 4: Simplify right side
    945,136,198.08x = 680,521,641,749,285,888
  5. Step 5: Solve for x
    x = 680,521,641,749,285,888/945,136,198.08
  6. Step 6: Final answer
    x = 720,024,947.87

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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.