Home / 28,411,988.85-39,219,206.81-18,623,063.49

Finding the Fourth Proportional to 28,411,988.85, 39,219,206.81 and 18,623,063.49

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Solution

The fourth proportional to 28,411,988.85, 39,219,206.81 and 18,623,063.49 is: 25,706,816.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,411,988.85 : 39,219,206.81 = 18,623,063.49 : x
  2. Step 2: Convert to fraction form
    28,411,988.85/39,219,206.81 = 18,623,063.49/x
  3. Step 3: Cross multiply
    28,411,988.85x = 39,219,206.81 × 18,623,063.49
  4. Step 4: Simplify right side
    28,411,988.85x = 730,381,778,356,955
  5. Step 5: Solve for x
    x = 730,381,778,356,955/28,411,988.85
  6. Step 6: Final answer
    x = 25,706,816.31

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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.