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Finding the Fourth Proportional to 108,877,603.80, 163,316,405.70 and 54,458,045.40

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Solution

The fourth proportional to 108,877,603.80, 163,316,405.70 and 54,458,045.40 is: 81,687,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,877,603.80 : 163,316,405.70 = 54,458,045.40 : x
  2. Step 2: Convert to fraction form
    108,877,603.80/163,316,405.70 = 54,458,045.40/x
  3. Step 3: Cross multiply
    108,877,603.80x = 163,316,405.70 × 54,458,045.40
  4. Step 4: Simplify right side
    108,877,603.80x = 8,893,892,236,175,418
  5. Step 5: Solve for x
    x = 8,893,892,236,175,418/108,877,603.80
  6. Step 6: Final answer
    x = 81,687,068.10

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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.