Home / 7,128,000.80-10,692,001.20-3,341,866.40

Finding the Fourth Proportional to 7,128,000.80, 10,692,001.20 and 3,341,866.40

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Solution

The fourth proportional to 7,128,000.80, 10,692,001.20 and 3,341,866.40 is: 5,012,799.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,000.80 : 10,692,001.20 = 3,341,866.40 : x
  2. Step 2: Convert to fraction form
    7,128,000.80/10,692,001.20 = 3,341,866.40/x
  3. Step 3: Cross multiply
    7,128,000.80x = 10,692,001.20 × 3,341,866.40
  4. Step 4: Simplify right side
    7,128,000.80x = 35,731,239,559,039.68
  5. Step 5: Solve for x
    x = 35,731,239,559,039.68/7,128,000.80
  6. Step 6: Final answer
    x = 5,012,799.60

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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.