Home / 10,639,281.80-15,958,922.70-7,392,024.20

Finding the Fourth Proportional to 10,639,281.80, 15,958,922.70 and 7,392,024.20

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Solution

The fourth proportional to 10,639,281.80, 15,958,922.70 and 7,392,024.20 is: 11,088,036.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639,281.80 : 15,958,922.70 = 7,392,024.20 : x
  2. Step 2: Convert to fraction form
    10,639,281.80/15,958,922.70 = 7,392,024.20/x
  3. Step 3: Cross multiply
    10,639,281.80x = 15,958,922.70 × 7,392,024.20
  4. Step 4: Simplify right side
    10,639,281.80x = 117,968,742,804,329.34
  5. Step 5: Solve for x
    x = 117,968,742,804,329.34/10,639,281.80
  6. Step 6: Final answer
    x = 11,088,036.30

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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.