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Finding the Fourth Proportional to 538,878,885.60, 808,318,328.40 and 538,878,885.60

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Solution

The fourth proportional to 538,878,885.60, 808,318,328.40 and 538,878,885.60 is: 808,318,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,878,885.60 : 808,318,328.40 = 538,878,885.60 : x
  2. Step 2: Convert to fraction form
    538,878,885.60/808,318,328.40 = 538,878,885.60/x
  3. Step 3: Cross multiply
    538,878,885.60x = 808,318,328.40 × 538,878,885.60
  4. Step 4: Simplify right side
    538,878,885.60x = 435,585,680,018,246,848
  5. Step 5: Solve for x
    x = 435,585,680,018,246,848/538,878,885.60
  6. Step 6: Final answer
    x = 808,318,328.40

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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.