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Finding the Fourth Proportional to 538,880,686.70, 808,321,030.05 and 538,880,686.70

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Solution

The fourth proportional to 538,880,686.70, 808,321,030.05 and 538,880,686.70 is: 808,321,030.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,880,686.70 : 808,321,030.05 = 538,880,686.70 : x
  2. Step 2: Convert to fraction form
    538,880,686.70/808,321,030.05 = 538,880,686.70/x
  3. Step 3: Cross multiply
    538,880,686.70x = 808,321,030.05 × 538,880,686.70
  4. Step 4: Simplify right side
    538,880,686.70x = 435,588,591,747,395,328
  5. Step 5: Solve for x
    x = 435,588,591,747,395,328/538,880,686.70
  6. Step 6: Final answer
    x = 808,321,030.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.