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Finding the Fourth Proportional to 199,705,689.80, 299,558,534.70 and 169,547,251.40

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Solution

The fourth proportional to 199,705,689.80, 299,558,534.70 and 169,547,251.40 is: 254,320,877.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,705,689.80 : 299,558,534.70 = 169,547,251.40 : x
  2. Step 2: Convert to fraction form
    199,705,689.80/299,558,534.70 = 169,547,251.40/x
  3. Step 3: Cross multiply
    199,705,689.80x = 299,558,534.70 × 169,547,251.40
  4. Step 4: Simplify right side
    199,705,689.80x = 50,789,326,191,796,520
  5. Step 5: Solve for x
    x = 50,789,326,191,796,520/199,705,689.80
  6. Step 6: Final answer
    x = 254,320,877.10

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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.