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Finding the Fourth Proportional to 555,255,062.46, 765,805,195.98 and 488,130,502.80

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Solution

The fourth proportional to 555,255,062.46, 765,805,195.98 and 488,130,502.80 is: 673,227,315.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,255,062.46 : 765,805,195.98 = 488,130,502.80 : x
  2. Step 2: Convert to fraction form
    555,255,062.46/765,805,195.98 = 488,130,502.80/x
  3. Step 3: Cross multiply
    555,255,062.46x = 765,805,195.98 × 488,130,502.80
  4. Step 4: Simplify right side
    555,255,062.46x = 373,812,875,360,569,984
  5. Step 5: Solve for x
    x = 373,812,875,360,569,984/555,255,062.46
  6. Step 6: Final answer
    x = 673,227,315.94

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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.