Home / 7,720,985.72-11,573,948-3,676,386.80

Finding the Fourth Proportional to 7,720,985.72, 11,573,948 and 3,676,386.80

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Solution

The fourth proportional to 7,720,985.72, 11,573,948 and 3,676,386.80 is: 5,510,994.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720,985.72 : 11,573,948 = 3,676,386.80 : x
  2. Step 2: Convert to fraction form
    7,720,985.72/11,573,948 = 3,676,386.80/x
  3. Step 3: Cross multiply
    7,720,985.72x = 11,573,948 × 3,676,386.80
  4. Step 4: Simplify right side
    7,720,985.72x = 42,550,309,651,086.40
  5. Step 5: Solve for x
    x = 42,550,309,651,086.40/7,720,985.72
  6. Step 6: Final answer
    x = 5,510,994.48

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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.