Home / 7,310,985.40-10,966,478.10-1,919,279.80

Finding the Fourth Proportional to 7,310,985.40, 10,966,478.10 and 1,919,279.80

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Solution

The fourth proportional to 7,310,985.40, 10,966,478.10 and 1,919,279.80 is: 2,878,919.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,310,985.40 : 10,966,478.10 = 1,919,279.80 : x
  2. Step 2: Convert to fraction form
    7,310,985.40/10,966,478.10 = 1,919,279.80/x
  3. Step 3: Cross multiply
    7,310,985.40x = 10,966,478.10 × 1,919,279.80
  4. Step 4: Simplify right side
    7,310,985.40x = 21,047,739,894,472.38
  5. Step 5: Solve for x
    x = 21,047,739,894,472.38/7,310,985.40
  6. Step 6: Final answer
    x = 2,878,919.70

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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.