Home / 99,519,124.80-149,345,042.40-45,638,702.40

Finding the Fourth Proportional to 99,519,124.80, 149,345,042.40 and 45,638,702.40

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Solution

The fourth proportional to 99,519,124.80, 149,345,042.40 and 45,638,702.40 is: 68,488,483.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,519,124.80 : 149,345,042.40 = 45,638,702.40 : x
  2. Step 2: Convert to fraction form
    99,519,124.80/149,345,042.40 = 45,638,702.40/x
  3. Step 3: Cross multiply
    99,519,124.80x = 149,345,042.40 × 45,638,702.40
  4. Step 4: Simplify right side
    99,519,124.80x = 6,815,913,945,008,982
  5. Step 5: Solve for x
    x = 6,815,913,945,008,982/99,519,124.80
  6. Step 6: Final answer
    x = 68,488,483.58

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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.