Home / 18,730,638.77-28,095,316.63-7,940,991.65

Finding the Fourth Proportional to 18,730,638.77, 28,095,316.63 and 7,940,991.65

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Solution

The fourth proportional to 18,730,638.77, 28,095,316.63 and 7,940,991.65 is: 11,911,215.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730,638.77 : 28,095,316.63 = 7,940,991.65 : x
  2. Step 2: Convert to fraction form
    18,730,638.77/28,095,316.63 = 7,940,991.65/x
  3. Step 3: Cross multiply
    18,730,638.77x = 28,095,316.63 × 7,940,991.65
  4. Step 4: Simplify right side
    18,730,638.77x = 223,104,674,602,607.06
  5. Step 5: Solve for x
    x = 223,104,674,602,607.06/18,730,638.77
  6. Step 6: Final answer
    x = 11,911,215.49

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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.