Home / 65,663,959.80-98,495,939.70-20,219,849.40

Finding the Fourth Proportional to 65,663,959.80, 98,495,939.70 and 20,219,849.40

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Solution

The fourth proportional to 65,663,959.80, 98,495,939.70 and 20,219,849.40 is: 30,329,774.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,663,959.80 : 98,495,939.70 = 20,219,849.40 : x
  2. Step 2: Convert to fraction form
    65,663,959.80/98,495,939.70 = 20,219,849.40/x
  3. Step 3: Cross multiply
    65,663,959.80x = 98,495,939.70 × 20,219,849.40
  4. Step 4: Simplify right side
    65,663,959.80x = 1,991,573,067,245,481
  5. Step 5: Solve for x
    x = 1,991,573,067,245,481/65,663,959.80
  6. Step 6: Final answer
    x = 30,329,774.10

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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.