Home / 10,964,730-15,138,189.72-7,046,075.28

Finding the Fourth Proportional to 10,964,730, 15,138,189.72 and 7,046,075.28

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Solution

The fourth proportional to 10,964,730, 15,138,189.72 and 7,046,075.28 is: 9,727,993.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,964,730 : 15,138,189.72 = 7,046,075.28 : x
  2. Step 2: Convert to fraction form
    10,964,730/15,138,189.72 = 7,046,075.28/x
  3. Step 3: Cross multiply
    10,964,730x = 15,138,189.72 × 7,046,075.28
  4. Step 4: Simplify right side
    10,964,730x = 106,664,824,370,042.12
  5. Step 5: Solve for x
    x = 106,664,824,370,042.12/10,964,730
  6. Step 6: Final answer
    x = 9,727,993.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.