Home / 12,900,948.14-17,802,950.58-7,320,210.74

Finding the Fourth Proportional to 12,900,948.14, 17,802,950.58 and 7,320,210.74

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Solution

The fourth proportional to 12,900,948.14, 17,802,950.58 and 7,320,210.74 is: 10,101,687.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900,948.14 : 17,802,950.58 = 7,320,210.74 : x
  2. Step 2: Convert to fraction form
    12,900,948.14/17,802,950.58 = 7,320,210.74/x
  3. Step 3: Cross multiply
    12,900,948.14x = 17,802,950.58 × 7,320,210.74
  4. Step 4: Simplify right side
    12,900,948.14x = 130,321,350,039,405.22
  5. Step 5: Solve for x
    x = 130,321,350,039,405.22/12,900,948.14
  6. Step 6: Final answer
    x = 10,101,687.77

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1.5x scale

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.