Home / 15,338,420.80-23,007,631.20-7,764,402.40

Finding the Fourth Proportional to 15,338,420.80, 23,007,631.20 and 7,764,402.40

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Solution

The fourth proportional to 15,338,420.80, 23,007,631.20 and 7,764,402.40 is: 11,646,603.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338,420.80 : 23,007,631.20 = 7,764,402.40 : x
  2. Step 2: Convert to fraction form
    15,338,420.80/23,007,631.20 = 7,764,402.40/x
  3. Step 3: Cross multiply
    15,338,420.80x = 23,007,631.20 × 7,764,402.40
  4. Step 4: Simplify right side
    15,338,420.80x = 178,640,506,907,594.88
  5. Step 5: Solve for x
    x = 178,640,506,907,594.88/15,338,420.80
  6. Step 6: Final answer
    x = 11,646,603.60

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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.