Home / 18,991,965.16-26,210,019.30-10,731,817

Finding the Fourth Proportional to 18,991,965.16, 26,210,019.30 and 10,731,817

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Solution

The fourth proportional to 18,991,965.16, 26,210,019.30 and 10,731,817 is: 14,810,533.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,991,965.16 : 26,210,019.30 = 10,731,817 : x
  2. Step 2: Convert to fraction form
    18,991,965.16/26,210,019.30 = 10,731,817/x
  3. Step 3: Cross multiply
    18,991,965.16x = 26,210,019.30 × 10,731,817
  4. Step 4: Simplify right side
    18,991,965.16x = 281,281,130,694,068.09
  5. Step 5: Solve for x
    x = 281,281,130,694,068.09/18,991,965.16
  6. Step 6: Final answer
    x = 14,810,533.21

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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.